patch 9.1.0534: completion wrong with fuzzy when cycling back to original

Problem:  completion wrong with fuzzy when cycling back to original
          (Quan Nguyen)
Solution: reset show_match_ok when cp_score is zero (glepnir)

fixes: #15095
closes: #15105

Signed-off-by: glepnir <glephunter@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>

src/insexpand.c

@@ -1307,6 +1307,11 @@ ins_compl_build_pum(void)
 		    did_find_shown_match = TRUE;
 		    max_fuzzy_score = compl->cp_score;
 		    compl_shown_match = compl;
+		}
+
+		if (!shown_match_ok && compl == compl_shown_match && !compl_no_select)
+		{
+		    cur = i;
 		    shown_match_ok = TRUE;
 		}
 
@@ -1318,8 +1323,6 @@ ins_compl_build_pum(void)
 			&& (max_fuzzy_score > 0
 				|| (compl_leader == NULL || lead_len == 0)))
 		{
-		    shown_match_ok = TRUE;
-		    cur = 0;
 		    if (match_at_original_text(compl_shown_match))
 		      compl_shown_match = shown_compl;
 		}
@@ -1367,6 +1370,7 @@ ins_compl_build_pum(void)
 	// sort by the largest score of fuzzy match
 	qsort(compl_match_array, (size_t)compl_match_arraysize,
 				       sizeof(pumitem_T), ins_compl_fuzzy_cmp);
+	shown_match_ok = TRUE;
     }
 
     if (!shown_match_ok)    // no displayed match at all
@@ -4102,7 +4106,8 @@ find_comp_when_fuzzy(void)
 
     if ((is_forward && compl_selected_item == compl_match_arraysize - 1)
 	    || (is_backward && compl_selected_item == 0))
-	return compl_first_match;
+	return compl_first_match != compl_shown_match ? compl_first_match :
+	    (compl_first_match->cp_prev ? compl_first_match->cp_prev : NULL);
 
     if (is_forward)
 	target_idx = compl_selected_item + 1;

src/testdir/dumps/Test_pum_highlights_10.dump

@@ -0,0 +1,20 @@
+| +0&#ffffff0|h|e|l@1|o| |h|e|l|i|o| |h|e|r|o| |h|e|r|o> @52
+|~+0#4040ff13&| @15| +0#0000001#ffd7ff255|h+0#0000e05&|e+0#0000001&|l@1|o| @9| +0#4040ff13#ffffff0@41
+|~| @15| +0#0000001#ffd7ff255|h+0#0000e05&|e+0#0000001&|l|i|o| @9| +0#4040ff13#ffffff0@41
+|~| @15| +0#0000001#e0e0e08|h+0#00e0e07&|e+0#0000001&|r|o| @10| +0#4040ff13#ffffff0@41
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|-+2#0000000&@1| |K|e|y|w|o|r|d| |L|o|c|a|l| |c|o|m|p|l|e|t|i|o|n| |(|^|N|^|P|)| |m+0#00e0003&|a|t|c|h| |1| |o|f| |3| +0#0000000&@27

src/testdir/dumps/Test_pum_highlights_11.dump

@@ -0,0 +1,20 @@
+| +0&#ffffff0|h|e|l@1|o| |h|e|l|i|o| |h|e|r|o| |h|e|l|i|o> @51
+|~+0#4040ff13&| @15| +0#0000001#ffd7ff255|h+0#0000e05&|e+0#0000001&|l@1|o| @9| +0#4040ff13#ffffff0@41
+|~| @15| +0#0000001#e0e0e08|h+0#00e0e07&|e+0#0000001&|l|i|o| @9| +0#4040ff13#ffffff0@41
+|~| @15| +0#0000001#ffd7ff255|h+0#0000e05&|e+0#0000001&|r|o| @10| +0#4040ff13#ffffff0@41
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|-+2#0000000&@1| |K|e|y|w|o|r|d| |L|o|c|a|l| |c|o|m|p|l|e|t|i|o|n| |(|^|N|^|P|)| |m+0#00e0003&|a|t|c|h| |2| |o|f| |3| +0#0000000&@27

src/testdir/test_popup.vim

@@ -1482,6 +1482,17 @@ func Test_pum_highlights_match()
   call term_sendkeys(buf, "o\<BS>\<C-R>=Comp()\<CR>")
   call VerifyScreenDump(buf, 'Test_pum_highlights_09', {})
 
+  " issue #15095 wrong select
+  call term_sendkeys(buf, "\<ESC>:set completeopt=fuzzy,menu\<CR>")
+  call TermWait(buf)
+  call term_sendkeys(buf, "S hello helio hero h\<C-X>\<C-P>")
+  call TermWait(buf, 50)
+  call VerifyScreenDump(buf, 'Test_pum_highlights_10', {})
+
+  call term_sendkeys(buf, "\<ESC>S hello helio hero h\<C-X>\<C-P>\<C-P>")
+  call TermWait(buf, 50)
+  call VerifyScreenDump(buf, 'Test_pum_highlights_11', {})
+
   call term_sendkeys(buf, "\<C-E>\<Esc>")
   call TermWait(buf)
 

src/version.c

@@ -704,6 +704,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    534,
 /**/
     533,
 /**/