$ git clone -n https://src.fedoraproject.org/rpms/rust-chrono-humanize.git /var/lib/mock/f45-build-40750-775/root/chroot_tmpdir/scmroot/rust-chrono-humanize
Cloning into '/var/lib/mock/f45-build-40750-775/root/chroot_tmpdir/scmroot/rust-chrono-humanize'...
$ git fetch origin 75b57816f7188235d6671194cb0d56837813f102:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-chrono-humanize
 * [new ref]         75b57816f7188235d6671194cb0d56837813f102 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 75b5781 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild