$ git clone -n https://src.fedoraproject.org/rpms/python-mulpyplexer.git /var/lib/mock/f45-build-31601-654/root/chroot_tmpdir/scmroot/python-mulpyplexer
Cloning into '/var/lib/mock/f45-build-31601-654/root/chroot_tmpdir/scmroot/python-mulpyplexer'...
$ git fetch origin 7628184147b668b90000b61c5f97f010dc7d376c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-mulpyplexer
 * [new ref]         7628184147b668b90000b61c5f97f010dc7d376c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7628184 Use new Python packaging macros