Merge pull request #26 from flownative/bugfix/tweak-flow-context-override

Fix empty FLOW_CONTEXT in Local Beach

Author: kdambekalns

root-files/opt/flownative/lib/nginx-legacy.sh

@@ -28,7 +28,7 @@ export BEACH_APPLICATION_PATH=${BEACH_APPLICATION_PATH%/}
 export BEACH_FLOW_BASE_CONTEXT=${BEACH_FLOW_BASE_CONTEXT:-Production}
 export BEACH_FLOW_SUB_CONTEXT=${BEACH_FLOW_SUB_CONTEXT:-Instance}
 export BEACH_FLOW_CONTEXT=${BEACH_FLOW_BASE_CONTEXT}/Beach/${BEACH_FLOW_SUB_CONTEXT}
-if [[ -v FLOW_CONTEXT ]]; then
+if [[ -v FLOW_CONTEXT && ! -z "$FLOW_CONTEXT" ]]; then
     export FLOW_CONTEXT
 else
     export FLOW_CONTEXT=${BEACH_FLOW_CONTEXT}