Hot reload does not work from a script?

[Stephan von Krawczynski]

Hello all,

can anyone explain why a hot reload as posted everywhere 
	wg syncconf wg0 <(wg-quick strip wg0)
from a linux console is working as expected whereas the very same line inside
a bash script does not work as hot reload but as kind of a restart where online
clients have to reconnect. This leves them offline for about 15 seconds.
I tried that with the above version and with systemctl, and both react the
same.
What is the underlying problem here?
--
Regards,
Stephan