commit https://github.com/vim/vim/commit/fd773e9e88add7d1ffef890fb9f3a00d613b4326 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Apr 2 19:39:16 2016 +0200 patch 7.4.1696 Problem: When using :stopinsert in a silent mapping the "INSERT" message isn't cleared. (Coacher) Solution: Always clear the message. (Christian Brabandt, closes https://github.com/vim/vim/issues/718)

--- a/src/ex_docmd.c
+++ b/src/ex_docmd.c
@@ -10040,6 +10040,7 @@ ex_stopinsert(exarg_T *eap UNUSED)
 {
     restart_edit = 0;
     stop_insert_mode = TRUE;
+    clearmode();
 }
 
 /*