$ git clone -n https://src.fedoraproject.org/rpms/yarnpkg.git /var/lib/mock/f40-build-2065253-49239/root/chroot_tmpdir/scmroot/yarnpkg
Cloning into '/var/lib/mock/f40-build-2065253-49239/root/chroot_tmpdir/scmroot/yarnpkg'...
$ git fetch origin 1fee24d03ccbdb5564ca43405b8dd1fe66e2bfd2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/yarnpkg
 * [new ref]         1fee24d03ccbdb5564ca43405b8dd1fe66e2bfd2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1fee24d Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild