Position of stemslash in grace note chord

MuseScore 0.9.6

1. Create a score
2. Add a C quarter note
3. Add a C grace note with a stemslash
4. Shift + E to add a E to the grace note chord
5. Shift + G

Actual behavior : the stemslash is in the middle of the chord, there is not way to manuall move the slash. (double click and arrows down/up)
Expected measure : the slash should remain close to the hook.

Workaround: use a normal grace note and a small line segment.

First reported by Widmung