First reported in https://community.plot.ly/t/text-move-to-wrong-position-when-scrolling-update-or-relayout-graph/4209

🆘 This is a regression 1.27.0 🆘

From http://codepen.io/plotly/pen/Kzjamd?editors=0011

• make the page scrollable (e.g. by opening the codePen console)
• click on a point, get an annotation (this works)
• scroll down
• click on a point, now the annotation text nodes are misplaced
• scroll up
• click on a point, now all the annotation text nodes are placed properly

I can't find anything suspicious in the 1.27.0 changelog. Maybe the Drawing optimisations of #1585 are to blame?