swunolocking1: #i106930#: thints.cxx: tweak isNestedAny() a bit  with the fix for i106930, inserting a nesting hint without extent never  overrides an existing hint; but overriding is actually desirable in the  corner case where the existing hint is _also_ empty.  [the unoapi test sw.SwXTextTableCursor relies on this]
swunolocking1: #i106930#: thints.cxx: tweak isNestedAny() a bit
 with the fix for i106930, inserting a nesting hint without extent never
 overrides an existing hint; but overriding is actually desirable in the
 corner case where the existing hint is _also_ empty.
 [the unoapi test sw.SwXTextTableCursor relies on this]
JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core