$ git clone -n https://src.fedoraproject.org/rpms/openjdk-asmtools7.git /var/lib/mock/f41-build-756374-13418/root/chroot_tmpdir/scmroot/openjdk-asmtools7
Cloning into '/var/lib/mock/f41-build-756374-13418/root/chroot_tmpdir/scmroot/openjdk-asmtools7'...
$ git fetch origin cb5d438acb49a9bbd0296839bec14cfbedc7d102:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/openjdk-asmtools7
 * [new ref]         cb5d438acb49a9bbd0296839bec14cfbedc7d102 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cb5d438 Require javapackages-tools at runtime