patch 8.0.1756: GUI: after prompting for a number the mouse shape is wrong

Problem:    GUI: after prompting for a number the mouse shape is sometimes
            wrong.
Solution:   Call setmouse() after setting "State". (Hirohito Higashi,
            closes #2709)

src/misc1.c

@@ -3594,6 +3594,11 @@ prompt_for_number(int *mouse_used)
     cmdline_row = 0;
     save_State = State;
     State = ASKMORE;	/* prevents a screen update when using a timer */
+#ifdef FEAT_MOUSE
+    /* May show different mouse shape. */
+    setmouse();
+#endif
+
 
     i = get_number(TRUE, mouse_used);
     if (KeyTyped)
@@ -3608,6 +3613,10 @@ prompt_for_number(int *mouse_used)
     else
 	cmdline_row = save_cmdline_row;
     State = save_State;
+#ifdef FEAT_MOUSE
+    /* May need to restore mouse shape. */
+    setmouse();
+#endif
 
     return i;
 }