a4f70d8 created the issue

Cyberduck remember size and position of window while quit, but 2nd window has fixed size 603x530 px at position X=87 px; Y=840 px, 3rd window has also that fixed size at better position X=X(2nd)+20px, Y=Y(2nd)+20px (see also bug #8852 – this is fixed partially).

-Expected behavior*

Open Cyberduck (appear 1st window with remembered position&size). 2nd Window appear at position X=X(1st)+20px, Y=Y(1st)+20px and the same size as 1st window, 3rd window appear at position X=X(2nd)+20px, Y=Y(2nd)+20px and the same size as 2nd window…

This behavior was completely correct in Cyberduck Nightbuild 4.8 (17719), but at any time after become buggy again.