$ git clone -n https://src.fedoraproject.org/rpms/libextractor.git /var/lib/mock/f40-build-2193183-51471/root/chroot_tmpdir/scmroot/libextractor
Cloning into '/var/lib/mock/f40-build-2193183-51471/root/chroot_tmpdir/scmroot/libextractor'...
$ git fetch origin 1f4de96b4ac6be801fa8b3161b31077535fb5be3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libextractor
 * [new ref]         1f4de96b4ac6be801fa8b3161b31077535fb5be3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1f4de96 Update SPDX licensing