Index: src/nano.c
===================================================================
--- src/nano.c	(revision 4962)
+++ src/nano.c	(working copy)
@@ -1714,7 +1714,7 @@
 
     /* If we aren't cutting or copying text, and the key wasn't a toggle,
      * blow away the text in the cutbuffer upon the next cutting action. */
-    if (!preserve)
+    if (!ISSET(UNDOABLE) && !preserve)
 	cutbuffer_reset();
 
     return input;
Index: src/text.c
===================================================================
--- src/text.c	(revision 4962)
+++ src/text.c	(working copy)
@@ -948,6 +948,7 @@
     case CUT_EOF:
 	u->to_end = TRUE;
     case CUT:
+    cutbuffer_reset();
 	u->mark_set = openfile->mark_set;
 	if (u->mark_set) {
 	    u->mark_begin_lineno = openfile->mark_begin->lineno;