Thanks for the report -- I've committed a fix, which will be in the next release. I'm unclear as to whether it'd be best to push a release with this fix into extras-testing now (and reset the 10-day clock, as I understand it) or wait until the package reaches extras before pushing a quick fix release. (I don't anticipate 3.4 will come particularly soon, and it seems silly to hold a one-line, low-risk fix that long.) Opinions?
Also, applications are supposed to have a way to request that a link load in an existing browser window (the load_url method). Currently, we treat this the same way as a request to open a new window. I question whether it's appropriate for applications to be allowed to choose the behavior, but strictly, if we're to have bug-for-bug compatibility with MicroB, we should implement this where possible. Comments?