$ git clone -n https://src.fedoraproject.org/rpms/java-1.8.0-openjdk.git /var/lib/mock/f41-build-side-1-3132666-39663/root/chroot_tmpdir/scmroot/java-1.8.0-openjdk
Cloning into '/var/lib/mock/f41-build-side-1-3132666-39663/root/chroot_tmpdir/scmroot/java-1.8.0-openjdk'...
$ git fetch origin 5f7e99c1de1656009a5aa5c622d317ddfe2df321:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/java-1.8.0-openjdk
 * [new ref]         5f7e99c1de1656009a5aa5c622d317ddfe2df321 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5f7e99c Removing autorelease, it missbehaves