$ git clone -n https://src.fedoraproject.org/rpms/rust-slog.git /var/lib/mock/f39-build-1526719-36092/root/chroot_tmpdir/scmroot/rust-slog
Cloning into '/var/lib/mock/f39-build-1526719-36092/root/chroot_tmpdir/scmroot/rust-slog'...
$ git fetch origin 7940856055dcb51b4eb5beefd16e13548c14dc07:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-slog
 * [new ref]         7940856055dcb51b4eb5beefd16e13548c14dc07 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7940856 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild