Small upstem whole notes not centered

Ubuntu Studio 14.04, GIT commit: 1812015

1) new score
2) measure 1 note entry
3) voice 1: whole note "A"
4) voice 2: whole note "F" (below the voice 1 note)
5) mark voice 1 note small (using "chord" small setting in Inspector)

Result: it is offset to the left rather than being centered