patch 8.2.4711: when 'insermode' is set :edit from <Cmd> mapping misbehaves

Problem:    When 'insermode' is set :edit from <Cmd> mapping misbehaves.
Solution:   Don't set "need_start_insertmode" when already in Insert mode.
            (closes #10116)
diff --git a/src/version.c b/src/version.c
index 9561003..54efff4 100644
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4711,
+/**/
     4710,
 /**/
     4709,