pytorch

c6fe65bf - [quant][graphmode][fx][fix] Fix error that DefaultQuantizer is not inserted after a module configured with None qconfig (#47316)

[quant][graphmode][fx][fix] Fix error that DefaultQuantizer is not inserted after a module configured with None qconfig (#47316) Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/47316 Test Plan: Imported from OSS Reviewed By: z-a-f Differential Revision: D24713727 fbshipit-source-id: e604ef2274ff4bb4e8b6ebbb6ba681018e9ae248