Can't resolve domain after vpn connection terminates

[Jonas Hagen]

Hello,

I can connect with openconnect to the VPN of our University without any
problem. So, thank you!

But after the connection is terminated (by Ctrl-C or suspend), I cannot
reach the university network at all, even the public domains cannot be
resolved anymore, and also subsequent connections via openconnect fail,
because the vpn server address cannot be resolved.

/etc/resolv.conf has a line "search unibe.ch home" even after
openconnect terminates. If I delete this line manually, everything works
again.

How could I (help to) fix this?

Best regards,

Jonas