Merge branch 'pw/diff-no-index-from-named-pipes' into maint-2.42

"git diff --no-index -R <(one) <(two)" did not work correctly,
which has been corrected.

* pw/diff-no-index-from-named-pipes:
  diff --no-index: fix -R with stdin

diff-no-index.c

@@ -232,6 +232,7 @@ static int queue_diff(struct diff_options *o,
 		if (o->flags.reverse_diff) {
 			SWAP(mode1, mode2);
 			SWAP(name1, name2);
+			SWAP(special1, special2);
 		}
 
 		d1 = noindex_filespec(name1, mode1, special1);