Control: tags -1 + pending This is a leftover from the change from upstream to CMake among other things.
A fix has been added to debian/clean in Salsa for 2.6.0-2 (currently unreleased) that will fix double-building and properly clean things. Refer to https://salsa.debian.org/debian/xca/-/commit/10134fbe6e7ee7f250fe473fddc06ce438d68e25 for the pending commit. Thomas