tests: demonstrate a bug with committed&ignored dirs

tests/test-status-committed-and-ignored.t

@@ -0,0 +1,35 b''
+#testcases dirstate-v1 dirstate-v2
+
+#if dirstate-v2
+  $ cat >> $HGRCPATH << EOF
+  > [format]
+  > use-dirstate-v2=1
+  > [storage]
+  > dirstate-v2.slow-path=allow
+  > EOF
+#endif
+
+  $ rm -rf r
+
+  $ hg init r
+  $ cd r
+  $ mkdir d1
+  $ mkdir d2
+  $ touch d1/f d2/f
+  $ hg commit -Am '.'
+  adding d1/f
+  adding d2/f
+  $ echo 'syntax:re' >> .hgignore
+  $ echo '^d1$' >> .hgignore
+  $ hg commit -Am "ignore d1"
+  adding .hgignore
+
+Now d1 is a directory that's both committed and ignored.
+Untracked files in d2 are still shown, but ones in d1 are ignored:
+
+  $ touch d1/g
+  $ touch d2/g
+  $ RAYON_NUM_THREADS=1 hg status
+  ? d2/g (no-rust no-rhg !)
+
+^ BUG: d2/g does not show up with rust status