I have defined "double quotes" text clip; what it does is surrounding selection with nice, typographic quotes: „”. It worked well and it still does, when invoked from the Text Clips panel:
However, when invoked through a shortcut key combination (Shift+Ctrl+' in my case), all of a sudden "%sel%" is inserted verbatim:„” (when nothing was selected)
„some selected text”
„%sel%” (when nothing was selected)
„%sel%”some selected text