Merge "Fix error when try assign on getter with existing property"
diff --git a/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-js-api-interface.js b/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-js-api-interface.js
index 6f9268c..4286fc9 100644
--- a/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-js-api-interface.js
+++ b/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-js-api-interface.js
@@ -147,13 +147,16 @@
//
// This clone and getter can be removed after plugins migrate to use
// info.mergeable.
- const change = Object.assign({
+ //
+ // assign on getter with existing property will report error
+ // see Issue: 12286
+ const change = Object.assign({}, detail.change, {
get mergeable() {
console.warn('Accessing change.mergeable from SHOW_CHANGE is ' +
'deprecated! Use info.mergeable instead.');
- return detail.info.mergeable;
+ return detail.info && detail.info.mergeable;
},
- }, detail.change);
+ });
const patchNum = detail.patchNum;
const info = detail.info;