(I nearly missed that question because of bug 643320.)
No, it isn't fixed. For example, at <https://bugs.launchpad.net/ubuntu/+source/byobu>, "Subscribe to bug mail" takes me to <https://bugs.launchpad.net/ubuntu/+source/byobu/+subscribe>. Submitting the form returns me to the top of <https://bugs.launchpad.net/ubuntu/+source/byobu/+subscribe>. If it loads a page at all, I expect it to return me to <https://bugs.launchpad.net/ubuntu/+source/byobu>.
(I nearly missed that question because of bug 643320.)
No, it isn't fixed. For example, at <https:/ /bugs.launchpad .net/ubuntu/ +source/ byobu>, "Subscribe to bug mail" takes me to <https:/ /bugs.launchpad .net/ubuntu/ +source/ byobu/+ subscribe>. Submitting the form returns me to the top of <https:/ /bugs.launchpad .net/ubuntu/ +source/ byobu/+ subscribe>. If it loads a page at all, I expect it to return me to <https:/ /bugs.launchpad .net/ubuntu/ +source/ byobu>.