$ git clone -n https://src.fedoraproject.org/rpms/yarnpkg.git /var/lib/mock/f40-build-2403240-60556/root/chroot_tmpdir/scmroot/yarnpkg
Cloning into '/var/lib/mock/f40-build-2403240-60556/root/chroot_tmpdir/scmroot/yarnpkg'...
$ git fetch origin ead93bd06af2a03f0dc7d5973c9bb698e1499c66:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/yarnpkg
 * [new ref]         ead93bd06af2a03f0dc7d5973c9bb698e1499c66 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ead93bd Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild