$ git clone -n https://src.fedoraproject.org/rpms/obfs4.git /var/lib/mock/f38-build-729853-101876/root/chroot_tmpdir/scmroot/obfs4
Cloning into '/var/lib/mock/f38-build-729853-101876/root/chroot_tmpdir/scmroot/obfs4'...
$ git fetch origin bd295fb15b7e550c7576d9175ce43346b5dacb81:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/obfs4
 * [new ref]         bd295fb15b7e550c7576d9175ce43346b5dacb81 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bd295fb - Rebuilt for https://fedoraproject.org/wiki/Fedora_36_Mass_Rebuild