Fix react keys in stack actions

Summary: Add missing `key` values to these components

Reviewed By: quark-zju

Differential Revision: D44115300

fbshipit-source-id: 632a40305aec6a3acce654076ab00b73406a60ae

addons/isl/src/CommitTreeList.tsx

@@ -117,7 +117,7 @@ function createSubtree(tree: CommitTreeWithPreviews, depth: number): Array<React
  previewType={previewType}
  hasChildren={renderedChildren.length > 0}
  />,
- depth === 1 ? <StackActions tree={tree} /> : null,
+ depth === 1 ? <StackActions key="stack-actions" tree={tree} /> : null,
  ].filter(notEmpty);
 }
 
@@ -230,7 +230,7 @@ function StackActions({tree}: {tree: CommitTreeWithPreviews}): React.ReactElemen
  // any existing diffs -> show resubmit stack,
  if (resubmittableStack != null && resubmittableStack.length >= MIN_STACK_SIZE_TO_SUGGEST_SUBMIT) {
  actions.push(
- <HighlightCommitsWhileHovering toHighlight={resubmittableStack}>
+ <HighlightCommitsWhileHovering key="resubmit-stack" toHighlight={resubmittableStack}>
  <VSCodeButton
  appearance="icon"
  onClick={() => {
@@ -249,7 +249,7 @@ function StackActions({tree}: {tree: CommitTreeWithPreviews}): React.ReactElemen
  ) {
  moreActions.push({
  label: (
- <HighlightCommitsWhileHovering toHighlight={submittableStack}>
+ <HighlightCommitsWhileHovering key="submit-entire-stack" toHighlight={submittableStack}>
  <FlexRow>
  <Icon icon="cloud-upload" slot="start" />
  <T>Submit entire stack</T>
@@ -270,7 +270,7 @@ function StackActions({tree}: {tree: CommitTreeWithPreviews}): React.ReactElemen
  ) {
  // NO existing diffs -> show submit stack ()
  actions.push(
- <HighlightCommitsWhileHovering toHighlight={submittableStack}>
+ <HighlightCommitsWhileHovering key="submit-stack" toHighlight={submittableStack}>
  <VSCodeButton
  appearance="icon"
  onClick={() => {
@@ -287,7 +287,7 @@ function StackActions({tree}: {tree: CommitTreeWithPreviews}): React.ReactElemen
  }
  const moreActionsButton =
  moreActions.length === 0 ? null : (
- <VSCodeButton appearance="icon" onClick={contextMenu}>
+ <VSCodeButton key="more-actions" appearance="icon" onClick={contextMenu}>
  <Icon icon="ellipsis" />
  </VSCodeButton>
  );