https://github.com/vim-jp/issues/issues/1168

fix_findstart_type.patch

diff --git a/src/edit.c b/src/edit.c
index ef4c98d29..8467994dd 100644
--- a/src/edit.c
+++ b/src/edit.c
@@ -5441,7 +5441,7 @@ ins_complete(int c, int enable_pum)
 	    pos = curwin->w_cursor;
 	    curwin_save = curwin;
 	    curbuf_save = curbuf;
-	    col = call_func_retnr(funcname, 2, args, FALSE);
+	    col = call_func_retnr(funcname, 2, args, FALSE, FALSE);
 	    if (curwin_save != curwin || curbuf_save != curbuf)
 	    {
 		EMSG(_(e_complwin));
diff --git a/src/eval.c b/src/eval.c
index 2ba9e82a8..13d20d328 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -1101,13 +1101,13 @@ call_func_retnr(
     char_u      *func,
     int		argc,
     char_u      **argv,
-    int		safe)		/* use the sandbox */
+    int		safe,		/* use the sandbox */
+    int		str_arg_only)	/* all arguments are strings */
 {
     typval_T	rettv;
     varnumber_T	retval;
 
-    /* All arguments are passed as strings, no conversion to number. */
-    if (call_vim_function(func, argc, argv, safe, TRUE, &rettv) == FAIL)
+    if (call_vim_function(func, argc, argv, safe, str_arg_only, &rettv) == FAIL)
 	return -1;
 
     retval = get_tv_number_chk(&rettv, NULL);
diff --git a/src/mbyte.c b/src/mbyte.c
index b79783527..cfe8202e7 100644
--- a/src/mbyte.c
+++ b/src/mbyte.c
@@ -4801,7 +4801,7 @@ call_imactivatefunc(int active)
 	argv[0] = (char_u *)"1";
     else
 	argv[0] = (char_u *)"0";
-    (void)call_func_retnr(p_imaf, 1, argv, FALSE);
+    (void)call_func_retnr(p_imaf, 1, argv, FALSE, TRUE);
 }
 
     static int
@@ -4815,7 +4815,7 @@ call_imstatusfunc(void)
     /* FIXME: :py print 'xxx' is shown duplicate result.
      * Use silent to avoid it. */
     ++msg_silent;
-    is_active = call_func_retnr(p_imsf, 0, NULL, FALSE);
+    is_active = call_func_retnr(p_imsf, 0, NULL, FALSE, TRUE);
     --msg_silent;
     return (is_active > 0);
 }
diff --git a/src/normal.c b/src/normal.c
index 3b958a5b5..16142a94e 100644
--- a/src/normal.c
+++ b/src/normal.c
@@ -2248,7 +2248,7 @@ op_function(oparg_T *oap UNUSED)
 	virtual_op = MAYBE;
 # endif
 
-	(void)call_func_retnr(p_opfunc, 1, argv, FALSE);
+	(void)call_func_retnr(p_opfunc, 1, argv, FALSE, TRUE);
 
 # ifdef FEAT_VIRTUALEDIT
 	virtual_op = save_virtual_op;
diff --git a/src/proto/eval.pro b/src/proto/eval.pro
index a096156ae..a30532ba2 100644
--- a/src/proto/eval.pro
+++ b/src/proto/eval.pro
@@ -20,7 +20,7 @@ list_T *eval_spell_expr(char_u *badword, char_u *expr);
 int get_spellword(list_T *list, char_u **pp);
 typval_T *eval_expr(char_u *arg, char_u **nextcmd);
 int call_vim_function(char_u *func, int argc, char_u **argv, int safe, int str_arg_only, typval_T *rettv);
-varnumber_T call_func_retnr(char_u *func, int argc, char_u **argv, int safe);
+varnumber_T call_func_retnr(char_u *func, int argc, char_u **argv, int safe, int str_arg_only);
 void *call_func_retstr(char_u *func, int argc, char_u **argv, int safe);
 void *call_func_retlist(char_u *func, int argc, char_u **argv, int safe);
 int eval_foldexpr(char_u *arg, int *cp);