More fixes for group merging. Model is now notified if need be

Authored by alcinos on Aug 21 2017, 8:57 AM.

Description

More fixes for group merging. Model is now notified if need be

Details

Committed
alcinosAug 21 2017, 9:23 AM
Parents
R158:07e9225953b4: small fix in groups merging + tests
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