rabbit_node_monitor: Cache pause_minority_guard() return value

If the list returned by `nodes()` didn't change since last call to
`pause_minority_guard()`, return the previous state, not `ok`.

This fixes a bug where the first call to `pause_minority_guard()` could
return `pausing` but the subsequent calls would return `ok`, leading to
channels resuming the send of confirms even though the node is about to
enter pause mode.

0 files changed, 0 insertions, 0 deletions