$ git clone -n https://src.fedoraproject.org/rpms/wmname.git /var/lib/mock/f45-build-38461-724/root/chroot_tmpdir/scmroot/wmname
Cloning into '/var/lib/mock/f45-build-38461-724/root/chroot_tmpdir/scmroot/wmname'...
$ git fetch origin e6b61d389852e8233e25d923f56000db68b9d321:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/wmname
 * [new ref]         e6b61d389852e8233e25d923f56000db68b9d321 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e6b61d3 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild