$ git clone -n https://src.fedoraproject.org/rpms/swing-layout.git /var/lib/mock/f40-build-2684619-67986/root/chroot_tmpdir/scmroot/swing-layout
Cloning into '/var/lib/mock/f40-build-2684619-67986/root/chroot_tmpdir/scmroot/swing-layout'...
$ git fetch origin 3ff245e4400af6ea38f6f5bd17d8a8e0c46168d3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/swing-layout
 * [new ref]         3ff245e4400af6ea38f6f5bd17d8a8e0c46168d3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3ff245e Rebuilt for java-21-openjdk as system jdk