$ git clone -n https://src.fedoraproject.org/rpms/rust-envsubst.git /var/lib/mock/f39-build-1635239-39851/root/chroot_tmpdir/scmroot/rust-envsubst
Cloning into '/var/lib/mock/f39-build-1635239-39851/root/chroot_tmpdir/scmroot/rust-envsubst'...
$ git fetch origin 6d39247259ef5b6e877e7bf6675f96bd4028e5cf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-envsubst
 * [new ref]         6d39247259ef5b6e877e7bf6675f96bd4028e5cf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6d39247 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild