diff --git a/doc/bugs/branchable_openid_site_uses_fixed-site_openid_realm__44___obviously_that_fails_when_domain_is_different.mdwn b/doc/bugs/branchable_openid_site_uses_fixed-site_openid_realm__44___obviously_that_fails_when_domain_is_different.mdwn
new file mode 100644
index 000000000..3388675fc
--- /dev/null
+++ b/doc/bugs/branchable_openid_site_uses_fixed-site_openid_realm__44___obviously_that_fails_when_domain_is_different.mdwn
@@ -0,0 +1,3 @@
+phil hands is kindly hosting rhombus-tech.net on an h-branchable ikiwiki.  openid has been enabled, for convenience.  unfortunately... :/etc/ikiwiki-hosting/ikiwiki-hosting.conf has an openid realm of "http://*.hands.com" which is kinda important (i assume) for security reasons.  however this conflicts with what openid requires.  openid logins are now specifying the realm of http://*.hands.com which of course doesn't match with http://rhombus-tech.net - it all goes pear-shaped from there.
+
+any ideas?  thanks folks.