$ git clone -n https://src.fedoraproject.org/rpms/xca.git /var/lib/mock/f39-build-1560409-37338/root/chroot_tmpdir/scmroot/xca
Cloning into '/var/lib/mock/f39-build-1560409-37338/root/chroot_tmpdir/scmroot/xca'...
$ git fetch origin 8fbcdf0907d43a3cf3c87eee1395c9cb00498713:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xca
 * [new ref]         8fbcdf0907d43a3cf3c87eee1395c9cb00498713 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8fbcdf0 New upstream release. Build using cmake. Doc file "README.IMPORTANT" for needed passord reset.