$ git clone -n https://src.fedoraproject.org/rpms/python-docopt.git /var/lib/mock/f45-build-30430-644/root/chroot_tmpdir/scmroot/python-docopt
Cloning into '/var/lib/mock/f45-build-30430-644/root/chroot_tmpdir/scmroot/python-docopt'...
$ git fetch origin 9c57e24628420eb2b4b75b0b96f370b6f8fd8b6c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-docopt
 * [new ref]         9c57e24628420eb2b4b75b0b96f370b6f8fd8b6c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9c57e24 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild