On the live release page, show the base commit from which the release will be made, and not just the commits on the release branch

[pratul]

• For almost trunk strategy, show base commit (on the working branch) from which release branch was created
• For backmerging strategy, show base commit (on the working branch) from which release branch was created
• For parallel strategy, from the merge commit that was created, show child commit on the working branch

[tachyons]

The commits we show now are only the head commits on push, we might need add different sections for the actual list of commits which going to include in the new release

[pratul]

I mean just the first commit that is used to trigger the workflow of the first step of the train, as soon as the train is started -- not the complete list of commits that will be included in the release.