Form with >1 tab: 1st tab pane overflows visible screen hght

Description: (b2162)

- When a form in a new tab has multiple sections (tabs), the height of the first tab pane (and only the first) will always automatically exceed/overflow the height of the form itself (if set) or the form's parent content panel/frame (if form height not set), even if the height of its contents clearly shouldn't cause this to happen. (ie. extra height (empty) is added by the system)

- A vertical scroll bar appears BUT it appears on the form, NOT on the tab pane as it should when content exceeds/overflows the height of the tab pane.
[obviously it shouldn't even be the case that a scroll bar appears, however this needs to be mentioned to ensure this is also addressed and does not linger beyond rectification of the primary bug]

=>I expect this bug will apply to any form which has multiple sections (tabs), even if it opens in a pre-defined tab.

The below bsv demonstrates:

1. In 'Dashboard' tab, click Cube icon in title bar of 'ALL Item Configurations' query to view multi section (tab) form

16/4 the part below now updated to be in green was fixed in 2163, though the part below now updated to be in red remains outstanding