Reporting Bug in Git Version Control System

Hello,
I have two accounts on github("yj291197" and "yaki29").
Both the accounts have different gmail IDs("yj291197@gmail.com" and
"yashjain.lnm@gmail.com" respectively) but same passwords.
I used to use git for "yj291197" account and a few days earlier I made
this new account and used git commit to commit on "yaki29" but it
appeared as "yj291197" committed on "yaki29's" repo.
Then I pulled a request of that commit then it appeared "yaki29"
pulled a request with a commit of "yj291197".



And during this whole session I was signed in as "yaki29" on github.com .


Please reply ....