api key not save with roundcube 1.3

[goegol]

When i change an setting of do an reauth or setup a new account:
The api key does not save in roundcube 1.3 and above.

[okoetter]

I have the same problem. Can anybody tell me where this key is saved so I can save it manually to my system?

[m0urs]

This worked for me:
#45