Description of problem:

On paac when you have a multiple branch match with commas, it would not be supported since commas is used as delimeters

For example

if you have a branch name called main,,1

you can't say:

 pipelinesascode.tekton.dev/on-target-branch: "[main,,1]"

since comma is a delimeter

Prerequisites (if any, like setup, operators/versions):

Steps to Reproduce

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Actual results:

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Reproducibility (Always/Intermittent/Only Once):

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