DetailViewer showIf doesn't work

[knguyen]

SmartGWT 4.0p

showIf only works when the field is initially visible, i.e. showIf has to return true on the first call. It appears that when I call setFields on DetailViewer, it immediately computes which set of fields should be visible and only use those fields from then on. That's not the expected behavior because I expect showIf to be only invoked when it's trying to render the data.

[Isomorphic]

This has been addressed in 4.1 - but it's not a regression, so it won't be ported back to any other branches.