[[ Bug 12951 ]] Selection rect should include whitespace between tabbed cells
[[ Bug 12951 ]] Fix selection bug when previous line included in selection
[[ Bug 12896 ]] Various fixes to selection and navigation in tabbed fields
[[ Bug 12952 ]] Make sure VGrid clip rect is set to segment boundary
Merge branch 'bugfix-12952' of https://github.com/runrevali/livecode into bugfix-12896
[[ Bug 12896 ]] Simplify some block-related methods with changes from bugfix-12952
Merge branch 'bugfix-12896' of https://github.com/runrevali/livecode into bugfix-12951
[[ Bug 12924 ]] Make sure extra line selection fill is calculated from last visual block of the line
[[ Bug 12924 ]] Get the appropriate segment for front and back fill calculation
Merge pull request #968 from runrevali/bugfix-12924

Bugfix 12924