[UI] clear policies in cli (#8291)

* fix: entity policies cleared from empty string in UI console

* add test for new use case of empty value

ui/app/lib/console-helpers.js

@@ -10,7 +10,8 @@ export function extractDataAndFlags(data, flags) {
     (accumulator, val) => {
       // will be "key=value" or "-flag=value" or "foo=bar=baz"
       // split on the first =
-      let [item, value] = val.split(/=(.+)/);
+      // default to value of empty string
+      let [item, value = ''] = val.split(/=(.+)?/);
       if (item.startsWith('-')) {
         let flagName = item.replace(/^-/, '');
         if (flagName === 'wrap-ttl') {
@@ -26,7 +27,6 @@ export function extractDataAndFlags(data, flags) {
         return accumulator;
       }
       accumulator.data[item] = value;
-
       return accumulator;
     },
     { data: {}, flags: {} }

ui/tests/unit/lib/console-helpers-test.js

@@ -166,6 +166,17 @@ module('Unit | Lib | console helpers', function() {
         flags: {},
       },
     },
+    {
+      name: 'data with empty values',
+      input: [[`foo=`, 'some=thing'], []],
+      expected: {
+        data: {
+          foo: '',
+          some: 'thing',
+        },
+        flags: {},
+      },
+    },
   ];
 
   testExtractCases.forEach(function(testCase) {