Hi everyone! And thanks again for a perfect product.
It appears there's a small bug in the implementation of fieldset. If we rename a field of type FieldsetTabOpen, the auto-created field of type FieldsetTabClose won't auto-rename. E.g. if we create a fieldset called "noises", two fields will be created -- "noise" (type: FieldsetTabOpen) and "noise_END" (type: FieldsetTabClose). And when we later rename the field "noise" to "acoustics", the field "noise_END" still keeps its name. The auto-generated field description will also remain unchanged.
This is only a minor bug, but removing it could make the Processwire even better. Thanks in advance!