$ git clone -n https://src.fedoraproject.org/rpms/obfs4.git /var/lib/mock/f40-build-2013244-45862/root/chroot_tmpdir/scmroot/obfs4
Cloning into '/var/lib/mock/f40-build-2013244-45862/root/chroot_tmpdir/scmroot/obfs4'...
$ git fetch origin cfb603233424ebe04a30a979f054d6e652628668:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/obfs4
 * [new ref]         cfb603233424ebe04a30a979f054d6e652628668 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cfb6032 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild