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21a0093c08
If the scope-app API unexpectedly restarts, it has no report at hand (until it gets one from the probe) and sends node count 0 to the frontend for all topologies. Once the report arrives, it will send the proper count. What happened was the frontend did hide Processes for a short time till the node count recovered. This moved the topology selection to the always visible Containers (hide_if_empty == false) while keeping the graph as is. Once the node count recovers, Processes comes back but the selection is still at Containers. We now keep the selected topology visible at all time even if the API returns a node count of 0. This recovers nicely when the correct node counts come in. Once the user selects a different topology while and a backend response arrives, it disappears. Fixes #2646