$ git clone -n https://src.fedoraproject.org/rpms/libxkbcommon.git /var/lib/mock/f45-build-17349-498/root/chroot_tmpdir/scmroot/libxkbcommon
Cloning into '/var/lib/mock/f45-build-17349-498/root/chroot_tmpdir/scmroot/libxkbcommon'...
$ git fetch origin fec9c82cff917d5513853c610b4fdd1d6c0df446:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libxkbcommon
 * [new ref]         fec9c82cff917d5513853c610b4fdd1d6c0df446 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fec9c82 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild