Here is the context:
We analyse a project: projetA with the parameter -Dsonar.branch=1.0.0
We find an issue (V1) on a line of code (C1) that we consider as a "false-positive". We flag it as "false-positive".
We analyse a project: projetA with the parameter -Dsonar.branch=1.1.0 (this project was branched from the 1.0.0)
We look at the issues and we find that V1 on the same code C1 is still raised as an issue.
We would expect to have the issue V1 being already flagged as "false-positive" because it's the same code than in branch 1.0.0