Only discovering at start

[filigino]

The Discovery event seems to only trigger for a short amount of time when ContactTracing.start() is called. Is this intentional?

Example:
-Phones A and B run ContactTracing.start() at the same time and each discover one another
-A runs ContactTracing.stop(), and then ContactTracing.start()
-A discovers B, but B does not discover A

Only after calling ContactTracing.stop() on B can I discover A (and if I waited too long then A will not discover B in this case). I can only get them to discover one another if ContactTracing.start() is called on both at the same time.