Code review comment for lp://staging/~stefan-schwarzburg/qreator/qreator_sms_mms_tel

Also, if it's not too much trouble, would you mind, as you're suggesting, separating the window height bug into a dedicated branch?

I don't mind minor unrelated fixes to be put in feature branches, but this particular one, as it's got to do with window sizing, which I remember to be a bit of a nightmare for Qreator in GTK, I'd like to keep track of.

Thanks!