$ git clone -n https://src.fedoraproject.org/rpms/libXxf86misc.git /var/lib/mock/f40-build-785486-133957/root/chroot_tmpdir/scmroot/libXxf86misc
Cloning into '/var/lib/mock/f40-build-785486-133957/root/chroot_tmpdir/scmroot/libXxf86misc'...
$ git fetch origin 39f6a00ff15402d0e90f3bb97a7acd89ec29d65a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libXxf86misc
 * [new ref]         39f6a00ff15402d0e90f3bb97a7acd89ec29d65a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 39f6a00 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild