Minimum distance property for all kinds of fermata is not saved
1) Add a fermata to a score.
2) Change its "min. distance" property.
3) Save/reload file.
Result: minimum distance for fermata has its default value rather than that assigned before saving.
Possibly some other element types are also affected, I didn't check them yet.
The issue exists both in 3.1 (where that property got introduced) and 3.3 Beta2 versions.