DataGrid TextBox editable cell escapes the '&' in its value

[zhuxw]

Dijit TextBox? editable cell in data grid escapes all the '&' characters when entering editing mode, and it does not revert this escape process when editing is completed. For example: if the original data is "A & B", after entering editing mode, the text box shows "A & B". Then click somewhere else to submit edit, the data becomes "A & B" instead of "A & B".

[evan]

Patch from Xiao Wen Zhu(Oliver) - IBM, CCLA, by reverse the escaped characters when changes are applied

[evan]

(In [24442]) Fixes #12211 by reverting back from "&" to "&" etc.when saving editing changes