never remove entries from the CompoundAssociation map

diff --git a/libs/ardour/playlist.cc b/libs/ardour/playlist.cc
index 6462ee2dca47b02db04f0ad4b669854c6badb050..adcd1d059b8c050ab6b1628cecdfb45e54f2eaf4 100644 (file)
--- a/libs/ardour/playlist.cc
+++ b/libs/ardour/playlist.cc
@@ -3261,7 +3261,7 @@ Playlist::uncombine (boost::shared_ptr<Region> target)
                }
 
                boost::shared_ptr<Region> original (ca->second);
-               cassocs.erase(ca);
+
                bool modified_region;
 
                if (i == rl.begin()) {