$ git clone -n https://src.fedoraproject.org/rpms/rust-sinit.git /var/lib/mock/f39-build-1517175-35695/root/chroot_tmpdir/scmroot/rust-sinit
Cloning into '/var/lib/mock/f39-build-1517175-35695/root/chroot_tmpdir/scmroot/rust-sinit'...
$ git fetch origin 8c3a1121e00ff459bc8c53ef2b1c33fe81a6cac2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-sinit
 * [new ref]         8c3a1121e00ff459bc8c53ef2b1c33fe81a6cac2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8c3a112 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild