fix Ticket #3203 - mcedit: replace dialog doesn't remember last entered replacement string

Signed-off-by: Andreas Mohr <and@gmx.li>

--- mc-4.8.27/src/editor/editsearch.c
+++ mc-4.8.27/src/editor/editsearch.c
@@ -155,6 +155,9 @@
     if ((search_default == NULL) || (*search_default == '\0'))
         search_default = INPUT_LAST_TEXT;
 
+    if ((replace_default == NULL) || (*replace_default == '\0'))
+	replace_default = INPUT_LAST_TEXT;
+
     list_of_types = mc_search_get_types_strings_array (&num_of_types);
 
     {