$ git clone -n https://src.fedoraproject.org/rpms/rust-slog-async.git /var/lib/mock/f45-build-45016-820/root/chroot_tmpdir/scmroot/rust-slog-async
Cloning into '/var/lib/mock/f45-build-45016-820/root/chroot_tmpdir/scmroot/rust-slog-async'...
$ git fetch origin b45a22ceef6e4a5dcf1fefff450ab87ae3e41589:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-slog-async
 * [new ref]         b45a22ceef6e4a5dcf1fefff450ab87ae3e41589 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b45a22c Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild