[PR PATCH] seq: fix infinite loop when selecting thread of orphaned message

[jeremybobbin <jeremybobbin@users.noreply.github.com>]

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There is a new pull request by jeremybobbin against master on the mblaze repository

https://github.com/jeremybobbin/mblaze master
https://github.com/leahneukirchen/mblaze/pull/180

seq: fix infinite loop when selecting thread of orphaned message
To replicate the infinite loop:

```
printf ' a\n' | mseq -S
mseq .=
```

Thanks

A patch file from https://github.com/leahneukirchen/mblaze/pull/180.patch is attached

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From 2812bebb5bc1d07e8f001d3347a36f2c34d88573 Mon Sep 17 00:00:00 2001
From: Jeremy Bobbin <jer@jer.cx>
Date: Mon, 10 Aug 2020 12:55:16 -0700
Subject: [PATCH] seq: fix infinite loop when selecting thread of orphaned
 message

printf ' a\n' | mseq -S
mseq .=
---
 seq.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/seq.c b/seq.c
index 970e30b..a75ee3f 100644
--- a/seq.c
+++ b/seq.c
@@ -427,7 +427,7 @@ blaze822_seq_next(char *map, char *range, struct blaze822_seq_iter *iter)
 	if (!iter->lines)  // count total lines
 		find_cur(map, iter);
 
-	if (!iter->start) {
+	if (!iter->s) {
 		int ret = parse_range(map, range, &iter->start, &iter->stop,
 		    iter->cur, iter->lines);
 		if (ret == 1) {