$ git clone -n https://src.fedoraproject.org/rpms/python-github3py.git /var/lib/mock/f45-build-30881-648/root/chroot_tmpdir/scmroot/python-github3py
Cloning into '/var/lib/mock/f45-build-30881-648/root/chroot_tmpdir/scmroot/python-github3py'...
$ git fetch origin e982d77079640bfd00b59a113d9fb757722200b7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-github3py
 * [new ref]         e982d77079640bfd00b59a113d9fb757722200b7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e982d77 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild