Infinite looping in forward transaction

[bchamagne]

Describe the problem you discovered

There might be some scenario where the forward transaction mechanism leads to infinite looping.

For example:
Imagine there are N nodes, and they all are synchronized but NODE_1 and NODE_2 (they are available).

NODE_1 get send_new_tx call, here 2 possibilities:
1/ tx is forwarded to NODE_2 (SEE BELOW)
4/ tx is forwarded to NODE_1 (= INFINITE LOOP)

Lets continue after 1/, there are 3 possibilities here:
2/ tx is forwarded to NODE_1 (= INFINITE LOOP)
3/ tx is forwarded to NODE_2 (=INFINITE LOOP)
5/ tx is forwarded to NODE_N (OK)

Describe the solution you'd like

No response