Sticky - this.root undefined

[vollmerr]

Bug Report

• Package version(s): 5.54.0
• Browser and OS versions: Chrome, Windows

Priorities and help requested (not applicable if asking question):

Are you willing to submit a PR to fix? No

Requested priority: High

Describe the issue:

Sticky component does not work due to this.root being undefined, resulting in failing various function calls. Believe this is due to PR #4016 changing 'this.refs.root' to 'this._root' for resolving refs but function calls still using 'this.root' instead of 'this._root'. Looks like there are some other occurrences in that PR of adding a prefix of _ in the name but not updating where the variable is used such as ColorPicker/ColorRectangle.tsx.

Actual behavior:

this.root is undefined

Expected behavior:

this.root to resolve to the correct ref

If applicable, please provide a codepen repro:

Using the ScrollablePane DetailsList Locked Header example:

https://codesandbox.io/s/62kpzv6l5n

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions to Fabric React!

[michaelangotti]

It looks like this issue has been answered/resolved. Closing this issue.