$ git clone -n https://src.fedoraproject.org/rpms/golang-github-c4milo-unpackit.git /var/lib/mock/f38-build-side-42-init-devel-896284-28552/root/chroot_tmpdir/scmroot/golang-github-c4milo-unpackit
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-896284-28552/root/chroot_tmpdir/scmroot/golang-github-c4milo-unpackit'...
$ git fetch origin 29e5079c44b4ef261d14e38c5888f8acb56cff55:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-c4milo-unpackit
 * [new ref]         29e5079c44b4ef261d14e38c5888f8acb56cff55 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 29e5079 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild