$ git clone -n https://src.fedoraproject.org/rpms/python-jsonpath-rw.git /var/lib/mock/f42-build-side-1-3582703-46886/root/chroot_tmpdir/scmroot/python-jsonpath-rw
Cloning into '/var/lib/mock/f42-build-side-1-3582703-46886/root/chroot_tmpdir/scmroot/python-jsonpath-rw'...
$ git fetch origin a62e09db800c6cc43bc6b50c543afa95c64306a4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-jsonpath-rw
 * [new ref]         a62e09db800c6cc43bc6b50c543afa95c64306a4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a62e09d Use %autorelease and %autochangelog