Why Auto-cancel redundant builds option excludes the default branch?

[AntonHK]

What is the reason for excluding the default branch after the implementation of Auto-cancel redundant builds option?

[rachael]

Hi there! By design, the “ Auto-cancel redundant builds ” functionality does not apply to your project’s default branch. However, here is a workaround that will allow you to enable this functionality on any branch:

[Workaround] Auto-cancel redundant builds on the default branch

By design the “Auto-cancel redundant builds” functionality does not apply to your project’s default branch. This workaround can also be used if for any reason you prefer not to enable the “Auto-cancel redundant builds” functionality at the project-level. Below is a set of instructions that will allow you to auto-cancel redundant workflows on any branch (including the default branch). You can either: Put the commands into a script within your repository and call it at the start of the workfl…

[otherchris-mednax]

It’s been well covered that it’s by design, the question is why that design choice was made. We’d like to understand this because its not clear, and it’s frustrating to have to use this hacky workaround to do something so simple.