$ git clone -n https://src.fedoraproject.org/rpms/AusweisApp2.git /var/lib/mock/f39-build-2184043-51270/root/chroot_tmpdir/scmroot/AusweisApp2
Cloning into '/var/lib/mock/f39-build-2184043-51270/root/chroot_tmpdir/scmroot/AusweisApp2'...
$ git fetch origin fa2d681abbf06f19bdade05426cf6cb2ccd8f0f4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/AusweisApp2
 * [new ref]         fa2d681abbf06f19bdade05426cf6cb2ccd8f0f4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fa2d681 Add dependencies needed to render the GUI properly