$ git clone -n https://src.fedoraproject.org/rpms/libtimezonemap.git /var/lib/mock/f45-build-17141-496/root/chroot_tmpdir/scmroot/libtimezonemap
Cloning into '/var/lib/mock/f45-build-17141-496/root/chroot_tmpdir/scmroot/libtimezonemap'...
$ git fetch origin a48ed5c34d7a4e3dac7dd47235b5bec69951b5df:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libtimezonemap
 * [new ref]         a48ed5c34d7a4e3dac7dd47235b5bec69951b5df -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a48ed5c Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild