$ git clone -n https://src.fedoraproject.org/rpms/rust-zvariant2.git /var/lib/mock/f38-build-side-43-rust-devel-1410212-31414/root/chroot_tmpdir/scmroot/rust-zvariant2
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1410212-31414/root/chroot_tmpdir/scmroot/rust-zvariant2'...
$ git fetch origin 489a5847d5f43cb9f1f8c3cd6bdfbe9ec023a9fe:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-zvariant2
 * [new ref]         489a5847d5f43cb9f1f8c3cd6bdfbe9ec023a9fe -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 489a584 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild