github-musescore-musescore-03bf869 (64 bit) dumps core if I try to open a new score

I'm running Fedora21, 64 bit, with all available updates and I'm running 03bf869 (64 bit) and having problems to simply open a new sore: mscore crashes with coredump (SIGSEGV).

Opening existing scores runs flawlessly.

Tracing (strace) the last few system calls:

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stat("/usr/local/share/mscore-2.0/styles/chords.xml", {st_mode=S_IFREG|0644, st_size=31241, ...}) = 0
open("/usr/local/share/mscore-2.0/styles/chords.xml", O_RDONLY|O_CLOEXEC) = 29
fcntl(29, F_SETFD, FD_CLOEXEC) = 0
fstat(29, {st_mode=S_IFREG|0644, st_size=31241, ...}) = 0
fstat(29, {st_mode=S_IFREG|0644, st_size=31241, ...}) = 0
read(29, "<?xml version=\"1.0\" encoding=\"UT"..., 16384) = 16384
read(29, " 13sus#11\r\n <"..., 16384) = 14857
read(29, "", 1527) = 0
read(29, "", 1527) = 0
close(29) = 0
stat("/usr/local/share/mscore-2.0/styles/stdchords.xml", {st_mode=S_IFREG|0644, st_size=13567, ...}) = 0
open("/usr/local/share/mscore-2.0/styles/stdchords.xml", O_RDONLY|O_CLOEXEC) = 29
fcntl(29, F_SETFD, FD_CLOEXEC) = 0
fstat(29, {st_mode=S_IFREG|0644, st_size=13567, ...}) = 0
fstat(29, {st_mode=S_IFREG|0644, st_size=13567, ...}) = 0
read(29, "<?xml version=\"1.0\" encoding=\"UT"..., 16384) = 13567
read(29, "", 2817) = 0
read(29, "", 2817) = 0
close(29) = 0
close(28) = 0
brk(0) = 0x528d000
brk(0x52b9000) = 0x52b9000
brk(0) = 0x52b9000
brk(0x52e6000) = 0x52e6000
close(25) = 0
open("/usr/local/share/mscore-2.0//templates/Jazz Big Band.mscz", O_RDONLY|O_CLOEXEC) = 25
fcntl(25, F_SETFD, FD_CLOEXEC) = 0
fstat(25, {st_mode=S_IFREG|0644, st_size=3814, ...}) = 0
fstat(25, {st_mode=S_IFREG|0644, st_size=3814, ...}) = 0
lstat("/usr/local/share/mscore-2.0//templates/Jazz Big Band.mscz", {st_mode=S_IFREG|0644, st_size=3814, ...}) = 0
read(25, "PK\3\4\24\0\0\0\10\0\366Q~?e\25\235\352z\0\0\0\251\0\0\0\26\0\0\0ME"..., 16384) = 3814
read(25, "", 12570) = 0
fstat(25, {st_mode=S_IFREG|0644, st_size=3814, ...}) = 0
lseek(25, 3792, SEEK_SET) = 3792
lseek(25, 3652, SEEK_SET) = 3652
read(25, "PK\1\2\0\0\24\0\0\0\10\0\366Q~?\245B\2049^\r\0\0\16\351\0\0\32\0\0\0"..., 16384) = 162
read(25, "", 16222) = 0
open("/usr/local/share/mscore-2.0//templates/Jazz Big Band.mscz", O_RDONLY|O_CLOEXEC) = 28
fcntl(28, F_SETFD, FD_CLOEXEC) = 0
fstat(28, {st_mode=S_IFREG|0644, st_size=3814, ...}) = 0
fstat(28, {st_mode=S_IFREG|0644, st_size=3814, ...}) = 0
lstat("/usr/local/share/mscore-2.0//templates/Jazz Big Band.mscz", {st_mode=S_IFREG|0644, st_size=3814, ...}) = 0
read(28, "PK\3\4\24\0\0\0\10\0\366Q~?e\25\235\352z\0\0\0\251\0\0\0\26\0\0\0ME"..., 16384) = 3814
read(28, "", 12570) = 0
fstat(28, {st_mode=S_IFREG|0644, st_size=3814, ...}) = 0
lseek(28, 3792, SEEK_SET) = 3792
lseek(28, 3652, SEEK_SET) = 3652
read(28, "PK\1\2\0\0\24\0\0\0\10\0\366Q~?\245B\2049^\r\0\0\16\351\0\0\32\0\0\0"..., 16384) = 162
read(28, "", 16222) = 0
lseek(28, 0, SEEK_SET) = 0
read(28, "PK\3\4\24\0\0\0\10\0\366Q~?e\25\235\352z\0\0\0\251\0\0\0\26\0\0\0ME"..., 16384) = 3814
read(28, "", 12570) = 0
lseek(28, 52, SEEK_SET) = 52
lseek(28, 174, SEEK_SET) = 174
lseek(28, 230, SEEK_SET) = 230
stat("/usr/local/share/mscore-2.0/styles/chords.xml", {st_mode=S_IFREG|0644, st_size=31241, ...}) = 0
open("/usr/local/share/mscore-2.0/styles/chords.xml", O_RDONLY|O_CLOEXEC) = 29
fcntl(29, F_SETFD, FD_CLOEXEC) = 0
fstat(29, {st_mode=S_IFREG|0644, st_size=31241, ...}) = 0
fstat(29, {st_mode=S_IFREG|0644, st_size=31241, ...}) = 0
read(29, "<?xml version=\"1.0\" encoding=\"UT"..., 16384) = 16384
read(29, " 13sus#11\r\n <"..., 16384) = 14857
read(29, "", 1527) = 0
read(29, "", 1527) = 0
close(29) = 0
stat("/usr/local/share/mscore-2.0/styles/cchords_muse.xml", {st_mode=S_IFREG|0644, st_size=42369, ...}) = 0
open("/usr/local/share/mscore-2.0/styles/cchords_muse.xml", O_RDONLY|O_CLOEXEC) = 29
fcntl(29, F_SETFD, FD_CLOEXEC) = 0
fstat(29, {st_mode=S_IFREG|0644, st_size=42369, ...}) = 0
fstat(29, {st_mode=S_IFREG|0644, st_size=42369, ...}) = 0
read(29, "<?xml version=\"1.0\" encoding=\"UT"..., 16384) = 16384
read(29, "ven;\r\n \r\n <"..., 16384) = 16384
write(2, "SUB: chord does not contain degr"..., 43) = 43
read(29, "alp; &alter_sharp; &sfive; &alte"..., 16384) = 9601
read(29, "", 6783) = 0
read(29, "", 6783) = 0
close(29) = 0
write(2, "tick2measure 0 (max -1) not foun"..., 34) = 34
write(2, "tick2measure 0 (max -1) not foun"..., 34) = 34
write(2, "tick2measure 0 (max -1) not foun"..., 34) = 34
write(2, "tick2measure 0 (max -1) not foun"..., 34) = 34
write(2, "tick2measure 0 (max -1) not foun"..., 34) = 34
write(2, "tick2measure 0 (max -1) not foun"..., 34) = 34
write(2, "tick2measure 0 (max -1) not foun"..., 34) = 34
write(2, "tick2measure 0 (max -1) not foun"..., 34) = 34
write(2, "tick2measure 0 (max -1) not foun"..., 34) = 34
write(2, "tick2measure 0 (max -1) not foun"..., 34) = 34
write(2, "tick2measure 0 (max -1) not foun"..., 34) = 34
write(2, "tick2measure 0 (max -1) not foun"..., 34) = 34
write(2, "tick2measure 0 (max -1) not foun"..., 34) = 34
write(2, "tick2measure 0 (max -1) not foun"..., 34) = 34
write(2, "tick2measure 0 (max -1) not foun"..., 34) = 34
write(2, "tick2measure 0 (max -1) not foun"..., 34) = 34
write(2, "tick2measure 0 (max -1) not foun"..., 34) = 34
write(2, "tick2measure 0 (max -1) not foun"..., 34) = 34
stat("/home/backes/.config/MuseScore/MuseScoreDevelopment.ini", {st_mode=S_IFREG|0664, st_size=12036, ...}) = 0
lstat("/home/backes/.config/MuseScore.ini", 0x7fffa4776a50) = -1 ENOENT (No such file or directory)
open("/home/backes/.config/MuseScore.ini", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat("/home/backes/.config/MuseScore.ini", 0x7fffa4776aa0) = -1 ENOENT (No such file or directory)
stat("/home/backes/.config/MuseScore.ini", 0x7fffa4776a70) = -1 ENOENT (No such file or directory)
lstat("/etc/xdg/MuseScore/MuseScoreDevelopment.ini", 0x7fffa4776a50) = -1 ENOENT (No such file or directory)
open("/etc/xdg/MuseScore/MuseScoreDevelopment.ini", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat("/etc/xdg/MuseScore/MuseScoreDevelopment.ini", 0x7fffa4776aa0) = -1 ENOENT (No such file or directory)
stat("/etc/xdg/MuseScore/MuseScoreDevelopment.ini", 0x7fffa4776a70) = -1 ENOENT (No such file or directory)
lstat("/etc/xdg/MuseScore.ini", 0x7fffa4776a50) = -1 ENOENT (No such file or directory)
open("/etc/xdg/MuseScore.ini", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat("/etc/xdg/MuseScore.ini", 0x7fffa4776aa0) = -1 ENOENT (No such file or directory)
stat("/etc/xdg/MuseScore.ini", 0x7fffa4776a70) = -1 ENOENT (No such file or directory)
brk(0) = 0x52e6000
brk(0x5313000) = 0x5313000
--- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x18} ---
+++ killed by SIGSEGV (core dumped) +++