Trigger that fires too often

[mversic]

it's possible to register a trigger that fires so often that it jams the network. This should be guarded against. When registering such triggers they should get rejected

[s8sato]

• Does a data trigger react to every data event in the event pool during the round? -- Inspect
• Related to Per-transaction triggers #4937 and Record trigger execution as a transaction #4968:
  One of the concepts behind pooling events was to prevent infinite trigger execution loops. If we want an event to be converted into an internal transaction and inserted among other ordered transactions without being pooled, this issue might be the key

[s8sato]

• Does a data trigger react to every data event in the event pool during the round?

Yes, #4937 should fix it to react only once to the event union per transaction