Depends on different situations..there will be Fixed, closed or reopen will be there Regression testing may be done even after a bug is fixed, any updations done to the project.. depending on the situations the status will be
You should define it because we (Testers) can not use any status for any issue. It is used for trace issue progress.so it must be accurate.
Let me tell you about our working system.
While any issue is fixed by developer then it will be marked with fixed , if any issue reject with any issue then issue will marked with Rejected with respective reason.
Fixed issue (by developer) will be verified by me (Tester who raised it).& marked it with Verified.
although answer to this varies company by company ideally bug status in regression testing should not be fixed it should be "in qa testing"............-> this is in case Bugzilla bug tracking & management system....
in case of JIRA it doesnt have any bucket called as "in qa testing", I suppose.... so it remains in fixed state(but tester needs to incorporate comments that in qa testing if doing regression or whatever kind of testing), but can be reopened if you caught bugs .......