Set stochini to true to use stoch restart patterns

Adds the namelist flag so the stochastic pattern restart files
get read when doing a RERUN.

Refs NOAA-EMC#2937

ush/forecast_postdet.sh

@@ -48,13 +48,17 @@ FV3_postdet() {
     done
 
     if [[ "${RERUN}" == "YES" ]]; then
-      file_list=$(stoch_restarts)
-      echo "Copying stochastic restarts for 'RUN=${RUN}' at '${restart_date}' from '${restart_dir}'"
-      for stoch_file in $(stoch_restarts); do
-        restart_file="${restart_date:0:8}.${restart_date:8:2}0000.${stoch_file}"
-        ${NCP} "${restart_dir}/${restart_file}" "${DATA}/INPUT/${stoch_file}" \
-        || ( echo "FATAL ERROR: Unable to copy stochastic restart, ABORT!"; exit 1 )
-      done
+      if [[ "${DO_SPPT:-}" == "YES" || "${DO_SKEB:-}" == "YES" || \
+            "${DO_SHUM:-}" == "YES" || "${DO_LAND_PERT:-}" == "YES" ]]; then
+        stochini=".true."
+        file_list=$(stoch_restarts)
+        echo "Copying stochastic restarts for 'RUN=${RUN}' at '${restart_date}' from '${restart_dir}'"
+        for stoch_file in $(stoch_restarts); do
+          restart_file="${restart_date:0:8}.${restart_date:8:2}0000.${stoch_file}"
+          ${NCP} "${restart_dir}/${restart_file}" "${DATA}/INPUT/${stoch_file}" \
+          || ( echo "FATAL ERROR: Unable to copy stochastic restart, ABORT!"; exit 1 )
+        done
+      fi
     else
       # Replace sfc_data with sfcanl_data restart files from current cycle (if found)
       local nn

ush/parsing_namelists_FV3.sh

@@ -656,6 +656,7 @@ if [[ "${DO_SPPT}" = "YES" || "${DO_SHUM}" = "YES" || "${DO_SKEB}" = "YES" || "$
 
     cat >> input.nml << EOF
 &nam_stochy
+  stochini=${stochini:-".false."}
 EOF
 
   if [[ ${DO_SKEB} = "YES" ]]; then