In SKARA-1728, I said that 'if we find a withdrawn pr, we need to add CSR_UPDATE_MARKER to the pr body.', yes, we need to add CSR_UPDATE_MARKER, but there is a prerequisite which is that our status message doesn't contain this withdrawn issue. Otherwise, the CSR bot will always add CSR_UPDATE_MARKER when it finds a withdrawn CSR Issue and the pr body will be updated very frequently(looks like the bot go berserk).

This issue is same as SKARA-1673. I discovered this issue and fixed it, but I am silly enough to make the same mistake again.