Power cycle needed to reconnect to RX when developing

[robthomson]

Not sure if this is a feature for safety - or a bug.

With FRSKY rx when developing and 'bound' to a receiver...

When you swich between serial and ethos mode you loose connection to the rx. I expect this when in ethos mode.

But..

When it switches to serial, the link never comes back. So you have to power cycle.

[bsongis-frsky]

To be checked with the next nightlies