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-rw-r--r--src/tools/dcpomatic_kdm.cc2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/tools/dcpomatic_kdm.cc b/src/tools/dcpomatic_kdm.cc
index 9995d80a9..b82cec2ad 100644
--- a/src/tools/dcpomatic_kdm.cc
+++ b/src/tools/dcpomatic_kdm.cc
@@ -380,7 +380,7 @@ private:
{
DKDMMap::iterator from = _dkdm_id.find (_dkdm->GetSelection ());
DKDMMap::iterator to = _dkdm_id.find (ev.GetItem ());
- if (from == _dkdm_id.end() || to == _dkdm_id.end()) {
+ if (from == _dkdm_id.end() || to == _dkdm_id.end() || from->first == to->first) {
return;
}