Minimap: Update of viz stops on bouncy scroll

For some reason, when a bouncy scroll happens, no more updates get passed down the line 🤨

Start by reproducing a bouncy scroll in the minimap and trace where visualization updates stop being passed down. Done means the minimap continues updating throughout and after the scroll; the issue names no files or tests, so locate the relevant update path and add or run the applicable coverage there.

Written by the indexing model from the issue text.