Crash when adding and saving scores if the Album file and mscz files are not located in the same place.

Nightly, December 13 (7a67e63)

It's a curious and tricky issue. But after some hours of incomprehension, failing to tell at this moment what really happens, I can now reproduce systematically the crash.

I use alternatively Windows 7 and Windows 8 (same result) with last version of Firefox (34.0.5)

Sorry, the description is a little long, but without details and precise steps, it is really incomprehensible.

So:

1. Create a score for violon and an other for flute. or use these files:
Violin.mscz
Flute.mscz
2. Go to: File -> Album -> New -> Fill Name, e.g. Violon-Flute
3. Press "Join Scores" -> Save .mscz file : Violin Flute.mscz
4. Press "Close" -> you are invited to Save in the .album file format
5. So : Save

Result: you have now on your Desktop (my destination choice) four files. Like this:

6. Now, tidy up in a temporary file folder (on desktop always) all these files, except the .album file. See:

7. Reopen MuseScore -> File -> Album -> Load "Violin Flute.album".
8. Add a new score (the same Violin file e.g., but it is not necessary in fact to adding a third score: it's only to support the demonstration)
9. Press "Join Scores" -> Save (.mscz file)

Result: crash

Additionnal notes:

- If you put back on the desktop an only file (Violin or Flute e.g.), and you start again the process (steps # 7 to #9), you obtained an error message after « Join Scores » → Save

- If you put back on the desktop only the « double » file (Violin-Flute) : crash again

- And If you put back on the desktop all the (three) files, as first attached image ("files desktop") : it's works again. And you may save a new .mscz file after doing : Save → Close : Violin Flute 1.mscz