$ git clone -n https://src.fedoraproject.org/rpms/rust-slog-extlog-derive.git /var/lib/mock/f45-build-45014-820/root/chroot_tmpdir/scmroot/rust-slog-extlog-derive
Cloning into '/var/lib/mock/f45-build-45014-820/root/chroot_tmpdir/scmroot/rust-slog-extlog-derive'...
$ git fetch origin bc680565a690eed04546fbee4a701128f060175f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-slog-extlog-derive
 * [new ref]         bc680565a690eed04546fbee4a701128f060175f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bc68056 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild