diff --git a/mercurial/merge.py b/mercurial/merge.py
--- a/mercurial/merge.py
+++ b/mercurial/merge.py
@@ -1367,8 +1367,7 @@
     for f, op in pycompat.iteritems(mresult.commitinfo):
         # the other side of filenode was choosen while merging, store this in
         # mergestate so that it can be reused on commit
-        if op[b'filenode-source'] == b'other':
-            ms.addmergedother(f)
+        ms.addcommitinfo(f, op)
 
     moves = []
 
diff --git a/mercurial/mergestate.py b/mercurial/mergestate.py
--- a/mercurial/mergestate.py
+++ b/mercurial/mergestate.py
@@ -592,8 +592,10 @@
         self._state[path] = [MERGE_RECORD_UNRESOLVED_PATH, frename, forigin]
         self._dirty = True
 
-    def addmergedother(self, path):
-        self._stateextras[path] = {b'filenode-source': b'other'}
+    def addcommitinfo(self, path, data):
+        """ stores information which is required at commit
+        into _stateextras """
+        self._stateextras[path].update(data)
         self._dirty = True
 
     def __contains__(self, dfile):