Comment 3 for bug 1591230

I looked into it and it is *not* a regression.

The change in r14955 rather revealed, that most of the internal extensions were not properly written: Since they often don't use the underscored ("_") paramter/attribute names they are not translated anymore, which is absolutely correct.

It can be easily fixed by including the underscore in the XML representation of the extension where translated strings are desired. I'll get to that now.