$ git clone -n https://src.fedoraproject.org/rpms/rust-argh_derive.git /var/lib/mock/f45-build-40108-768/root/chroot_tmpdir/scmroot/rust-argh_derive
Cloning into '/var/lib/mock/f45-build-40108-768/root/chroot_tmpdir/scmroot/rust-argh_derive'...
$ git fetch origin 37f534885453fbe53ff753d1b9bd18b14a25deaa:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-argh_derive
 * [new ref]         37f534885453fbe53ff753d1b9bd18b14a25deaa -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 37f5348 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild