As I've mentioned this is an exceptionally annoying issue, so I've cherrypicked the fix into the current release version of Unity, and did a PPA for it:
Previously Unity would crash about 50% of the time whenever I closed Darktable (a photography application), with the fixed Unity version from the above PPA, I opened and closed Darktable about ten times without any crashes yet.
As I've mentioned this is an exceptionally annoying issue, so I've cherrypicked the fix into the current release version of Unity, and did a PPA for it:
https:/ /launchpad. net/~pmjdebruij n/+archive/ unity-testing
Previously Unity would crash about 50% of the time whenever I closed Darktable (a photography application), with the fixed Unity version from the above PPA, I opened and closed Darktable about ten times without any crashes yet.
So I guess this is confirmed fixed.