Edit Map: One missing segment triangle after editing

[ingoschi]

Describe the bug

When I edit the map segments ( a rename is enough, but occurs also after splitting), one segment triangle is missing after the edit until reloading the page. Which segment was edited does not matter. It even happens when the edit is cancelled.

To Reproduce

1. Go to "Edit Map"
2. Edit a segment (a.e. rename)
3. Not all triangles are shown anymore until reload of page.

Screenshots

This is the map after a mapping pass, rooms will look better after cleaning.

MapData/segments:
{"1":"Bad","2":"Arbeitszimmer","3":"WC","4":"Küche","5":"Schlafzimmer","6":"KInderzimmer","7":"Flur","8":"Esszimmer","9":"Wohnzimmer"}

The triangle of Segment 7 (Flur) is missing.

Vacuum Model

Dreame D9

Valetudo Version

2021.12.0

Expected behavior

After a edit the (partial?) redraw of the map should show all triangles

Additional context

Browser: Chrome 96.0.4664.55