Tester finds a bug in production,
management be like...

YOUR DOING IT WRONG!!!
YOUR TESTER IS DOING IT WRONG!!!

There we go again:
Don't never ever fucking ever test in PROD. There are like 1000 reasons not to do it!!!
The industry has to accept that we need highly trained testers.
Because if the tester is an IT professional, he is capable of handling environments, versions, rollbacks and so on himself... In that case he can tell you exactly in what build sth went wrong... without touching prod... and with this info he can tell how long a bug has been deployed.