Adding again the "init-test-ext" output in the ideal case.

namelists/real-from-ideal/icon_atmosphere_ideal.namelist

@@ -49,3 +49,13 @@
     taxis_tunit                 = 1
     ml_varlist                  = 'group:dwd_fg_atm_vars', 'group:dwd_fg_sfc_vars'
 /
+
+&output_nml
+    steps_per_file              = 1
+    output_start                = '#OUTPUT_END#'
+    output_end                  = '#OUTPUT_END#'
+    output_filename             = "init-test-ext"
+    include_last                = .true.
+    output_interval             = 'PT3600S'
+    ml_varlist                  = 'depth_lk', 'emis_rad', 'fr_lake', 'fr_land', 'topography_c', 'soiltyp', 'sso_stdh', 'sso_theta', 'sso_gamma', 'sso_sigma'
+/