$ git clone -n https://src.fedoraproject.org/rpms/libstrophe.git /var/lib/mock/f40-build-785775-134119/root/chroot_tmpdir/scmroot/libstrophe
Cloning into '/var/lib/mock/f40-build-785775-134119/root/chroot_tmpdir/scmroot/libstrophe'...
$ git fetch origin 68b1ff3df9172d9a8ac2dfc9b4147cf6c10cebed:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libstrophe
 * [new ref]         68b1ff3df9172d9a8ac2dfc9b4147cf6c10cebed -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 68b1ff3 Update to 0.13.1