pg-promise: Stack overflow when losing SSH tunneling connections

Hello there,

First of all I have to say this is a great library. Really neat and well maintained!

I think I have encountered a serious problem related to losing an established connection with a DB.

If the application using pg-promise successfully connects to a DB but then the physical connection ceases to exist (e.g. unexpected truncation of ssh tunnel), pg-promise will trigger an apparent-infinite call recursion to getSafeConnection which will result in a RangeError: Maximum call stack size exceeded.

I am not sure there is anything I can do to catch this error as it is quite low-level inside the guts of pg-promise, but perhaps scheduling the next call to getSafeConnection without blocking the event loop could solve this.

Thank you so much for your time!