also a problem for theme plugin

diff --git a/doc/bugs/underlaydir_file_expose.mdwn b/doc/bugs/underlaydir_file_expose.mdwn
index c827c6dd85b8b8d4cf7ffec25849d80df4000393..ca492e396ea2170bb9c461a0fad4a7bbefcb9ff5 100644 (file)
--- a/doc/bugs/underlaydir_file_expose.mdwn
+++ b/doc/bugs/underlaydir_file_expose.mdwn
@@ -1,4 +1,12 @@
 If a file in the srcdir is removed, exposing a file in the underlaydir,
-ikiwiki will notice the removal and delete the page from the destdir. The
+ikiwiki will not notice the removal, and the
 page from the underlay will not be built. (However, it will be if the wiki
 gets rebuilt.)
+
+> This problem is caused by ikiwiki storing only filenames relative to
+> the srcdir or underlay, and mtime comparison not handling this case.
+
+> A related problem occurs if changing a site's theme with the
+> [[plugins/theme]] plugin. The style.css of the old and new theme
+> often has the same mtime, so ikiwiki does not update it w/o a rebuild.
+> --[[Joey]]