patch 8.2.1265: crash with EXITFREE when split() fails

Problem:    Crash with EXITFREE when split() fails.
Solution:   Restore 'cpoptions'.

src/evalfunc.c

@@ -7859,9 +7859,9 @@ f_split(typval_T *argvars, typval_T *rettv)
 	pat = (char_u *)"[\\x01- ]\\+";
 
     if (rettv_list_alloc(rettv) == FAIL)
-	return;
+	goto theend;
     if (typeerr)
-	return;
+	goto theend;
 
     regmatch.regprog = vim_regcomp(pat, RE_MAGIC + RE_STRING);
     if (regmatch.regprog != NULL)
@@ -7898,6 +7898,7 @@ f_split(typval_T *argvars, typval_T *rettv)
 	vim_regfree(regmatch.regprog);
     }
 
+theend:
     p_cpo = save_cpo;
 }
 

src/version.c

@@ -754,6 +754,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1265,
 /**/
     1264,
 /**/