Fix empty blame view when opened from the diff view on i586

The regression was introduced by 2a8ef0f.

Fixes #1362

Author: koutcher

NEWS.adoc

@@ -1,6 +1,13 @@
 Release notes
 =============
 
+master
+------
+
+Bug fixes:
+
+ - Fix empty blame view when opened from the diff view on i586. (#1362)
+
 tig-2.5.11
 ----------
 
@@ -26,6 +33,7 @@ Improvements:
  - Allow different colors for all references types.
  - Enable search in sections titles. (#1043)
  - Show committer date by default in the date column. (#294)
+ - Update utf8proc to v2.10.0, supporting Unicode 16.
  - Only show stash, notes and prefetch in the refs view when
    invoked with `tig refs --all`. (#1359)
 

src/diff.c

@@ -698,7 +698,7 @@ diff_trace_origin(struct view *view, enum request request, struct line *line)
 	}
 
 	string_ncopy(view->env->file, commit.filename, strlen(commit.filename));
-	string_copy(request == REQ_VIEW_BLAME ? view->env->ref : view->env->commit, header.id);
+	string_copy_rev(request == REQ_VIEW_BLAME ? view->env->ref : view->env->commit, header.id);
 	view->env->goto_lineno = header.orig_lineno - 1;
 
 	return request;