$ git clone -n https://src.fedoraproject.org/rpms/python-can.git /var/lib/mock/f45-build-29825-641/root/chroot_tmpdir/scmroot/python-can
Cloning into '/var/lib/mock/f45-build-29825-641/root/chroot_tmpdir/scmroot/python-can'...
$ git fetch origin f86eb9c299843260c886fa7092cb1f97aa7e3579:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-can
 * [new ref]         f86eb9c299843260c886fa7092cb1f97aa7e3579 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f86eb9c Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild