$ git clone -n https://src.fedoraproject.org/rpms/python-keyrings-alt.git /var/lib/mock/f41-build-side-2-python-2724173-30735/root/chroot_tmpdir/scmroot/python-keyrings-alt
Cloning into '/var/lib/mock/f41-build-side-2-python-2724173-30735/root/chroot_tmpdir/scmroot/python-keyrings-alt'...
$ git fetch origin dd05544102a93f93c0f75eff7a7b550c2b767000:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-keyrings-alt
 * [new ref]         dd05544102a93f93c0f75eff7a7b550c2b767000 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dd05544 Stop integration-testing PyCrypto/pycryptodome