UnstableChanges

Summary

  1. Fixes #4875. Backporting PR #3097 to P7.0. (details)
Commit 17a1374c6777f0a81578816cf6c23e0f9a3bdbe8 by tinchodias
Fixes #4875. Backporting PR #3097 to P7.0.
Fixed "lost changes detector" and added a test. Also refactored a bit
the already present tests.
The file was modifiedsrc/EpiceaBrowsers/EpLostChangesDetector.class.st (diff)
The file was modifiedsrc/EpiceaBrowsers-Tests/EpLostChangesDetectorTest.class.st (diff)