$ git clone -n https://src.fedoraproject.org/rpms/python-apipkg.git /var/lib/mock/f45-build-29369-637/root/chroot_tmpdir/scmroot/python-apipkg
Cloning into '/var/lib/mock/f45-build-29369-637/root/chroot_tmpdir/scmroot/python-apipkg'...
$ git fetch origin fba8b26319dc82ebf59210a8c8c4f8695893be97:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-apipkg
 * [new ref]         fba8b26319dc82ebf59210a8c8c4f8695893be97 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fba8b26 Fix python-apipkg: FTBFS in Fedora rawhide/f45 rhbz#2504439 and rhbz#2485758