v1.50.1

Fixed

• Guard against mirrored + automargin anchor:'free' axes (bug introduced in 1.50.0) [#4273]
• Fix streamtube trace starts case when missing a dimension [#4265]
• Fix scattergl performance for drawing legend items of traces with typed arrays [#4268]
• Fix legend item style for markers with typed array colors [#4268]
• Do not attempt to re-hover on exiting subplots [#4269]
• Fix "layout first" transition race condition [#4262]