$ git clone -n https://src.fedoraproject.org/rpms/rust-yaml-rust.git /var/lib/mock/f38-build-side-43-rust-devel-1417799-31459/root/chroot_tmpdir/scmroot/rust-yaml-rust
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1417799-31459/root/chroot_tmpdir/scmroot/rust-yaml-rust'...
$ git fetch origin d1082a06b446b897c8851f02121fe2e3934b1b0d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-yaml-rust
 * [new ref]         d1082a06b446b897c8851f02121fe2e3934b1b0d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d1082a0 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild