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Improved some ERC721 internal shenanigans (#1450) · 643ac86d
* Made _clearApproval private, added clarifying comments in _addTokenTo and _removeTokenFrom. * Added approval information. (cherry picked from commit 8204f6a7)
Nicolás Venturo authored
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* Made _clearApproval private, added clarifying comments in _addTokenTo and _removeTokenFrom. * Added approval information. (cherry picked from commit 8204f6a7)