$ git clone -n https://src.fedoraproject.org/rpms/python-waitress.git /var/lib/mock/f45-build-33630-671/root/chroot_tmpdir/scmroot/python-waitress
Cloning into '/var/lib/mock/f45-build-33630-671/root/chroot_tmpdir/scmroot/python-waitress'...
$ git fetch origin defeabdfe9c5fc13f5739ac7cef4e6a186f26ea6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-waitress
 * [new ref]         defeabdfe9c5fc13f5739ac7cef4e6a186f26ea6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at defeabd Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild