$ git clone -n https://src.fedoraproject.org/rpms/rust-drg.git /var/lib/mock/f39-build-2281998-55507/root/chroot_tmpdir/scmroot/rust-drg
Cloning into '/var/lib/mock/f39-build-2281998-55507/root/chroot_tmpdir/scmroot/rust-drg'...
$ git fetch origin 0406c11a4bf82a18408996635b2a5624c31ae0b4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-drg
 * [new ref]         0406c11a4bf82a18408996635b2a5624c31ae0b4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0406c11 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild