$ git clone -n https://src.fedoraproject.org/rpms/kf5-kbookmarks.git /var/lib/mock/f39-build-1582239-38107/root/chroot_tmpdir/scmroot/kf5-kbookmarks
Cloning into '/var/lib/mock/f39-build-1582239-38107/root/chroot_tmpdir/scmroot/kf5-kbookmarks'...
$ git fetch origin bf87052a34505aac6499a202c937f0829f1d8058:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf5-kbookmarks
 * [new ref]         bf87052a34505aac6499a202c937f0829f1d8058 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bf87052 5.111.0