fix #2750: delete OC username when resetting login information
fix #2750: delete OC username when resetting login information

matej116/cgeo,madankb/cgeo,brok85/cgeo,cgeo/cgeo,cgeo/cgeo,yummy222/cgeo,tobiasge/cgeo,S-Bartfast/cgeo,Bananeweizen/cgeo,brok85/cgeo,cgeo/cgeo,schwabe/cgeo,SammysHP/cgeo,tobiasge/cgeo,ThibaultR/cgeo,Huertix/cgeo,samueltardieu/cgeo,pstorch/cgeo,xiaoyanit/cgeo,pstorch/cgeo,xiaoyanit/cgeo,yummy222/cgeo,SammysHP/cgeo,ThibaultR/cgeo,xiaoyanit/cgeo,vishwakulkarni/cgeo,S-Bartfast/cgeo,tobiasge/cgeo,lewurm/cgeo,schwabe/cgeo,ThibaultR/cgeo,auricgoldfinger/cgeo,kumy/cgeo,marco-dev/c-geo-opensource,auricgoldfinger/cgeo,rsudev/c-geo-opensource,vishwakulkarni/cgeo,samueltardieu/cgeo,kumy/cgeo,Bananeweizen/cgeo,lewurm/cgeo,brok85/cgeo,superspindel/cgeo,auricgoldfinger/cgeo,Huertix/cgeo,matej116/cgeo,KublaikhanGeek/cgeo,SammysHP/cgeo,pstorch/cgeo,mucek4/cgeo,mucek4/cgeo,yummy222/cgeo,superspindel/cgeo,rsudev/c-geo-opensource,Huertix/cgeo,marco-dev/c-geo-opensource,schwabe/cgeo,madankb/cgeo,marco-dev/c-geo-opensource,madankb/cgeo,Bananeweizen/cgeo,KublaikhanGeek/cgeo,schwabe/cgeo,lewurm/cgeo,KublaikhanGeek/cgeo,mucek4/cgeo,matej116/cgeo,vishwakulkarni/cgeo,cgeo/cgeo,S-Bartfast/cgeo,rsudev/c-geo-opensource,kumy/cgeo,superspindel/cgeo,samueltardieu/cgeo