$ git clone -n https://src.fedoraproject.org/rpms/golang-lukechampine-blake3.git /var/lib/mock/f38-build-side-42-init-devel-635769-26382/root/chroot_tmpdir/scmroot/golang-lukechampine-blake3
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-635769-26382/root/chroot_tmpdir/scmroot/golang-lukechampine-blake3'...
$ git fetch origin 8bcf6c72a4226552478b6652fa316109d55a0299:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-lukechampine-blake3
 * [new ref]         8bcf6c72a4226552478b6652fa316109d55a0299 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8bcf6c7 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild