Yes, this is happening when there are changes on more than one branch.  We 
have a single "Pipeline" job defined to run against all branches in our 
repo.  Occasionally, there will be more than one branch with a change when 
the job is triggered by source control.  Currently, we have to manually 
start the job again to run the job against the additional branch.

How do I make a "Pipeline" job schedule additional executions automatically 
when multiple candidate revisions are found, like the freestyle job does?  
It seems like it should work out of the box and I see there's an extension 
(BuildSingleRevisionOnly) to disable that behavior.
On Tuesday, October 6, 2020 at 5:02:29 PM UTC-4 Mark Waite wrote:

> Multiple candidate revisions found was usually an indication that a single 
> job was defined to build multiple branches and it would switch from one 
> branch to the next as changes were detected in a specific branch.  That was 
> all that Freestyle jobs could offer.  It worked but the changes report and 
> the test results and other history items were unclear and very difficult to 
> interpret.  If the previous build was from the same branch 
>
> Jenkins Pipeline allows you to define a multibranch pipeline so that 
> Jenkins will automatically create a new job each time a branch is detected 
> and will automatically destroy the job when a branch is deleted.  That 
> makes the history usable and simplifies the experience for users.
>
> On Tue, Oct 6, 2020 at 2:20 PM Keith Turner <[email protected]> wrote:
>
>> I've setup a test with a repository that has several branches.  I created 
>> a freestyle jenkins job that uses Git SCM to checkout the repo.  When I run 
>> this job, it shows the below and results in multiple executions of the job:
>>
>> Multiple candidate revisions
>> Scheduling another build to catch up with <job name>
>> Checking out Revision <id> (<branch>)
>>
>> I created a pipeline job, basically the same.  It uses checkout, $class 
>> GitSCM and no extensions.  When I run this job, it shows the below and does 
>> not schedule additional executions of the job:
>>
>> Multiple candidate revisions
>> Checking out Revision <id> (<branch>)
>>
>> This is with Jenkins 2.235.5 and git-plugin 4.4.4, but this behavior has 
>> been consistent for some time.  Is this a bug or do I need to do something 
>> differently to get the pipeline script to schedule additional executions of 
>> the job when multiple candidate revisions are found?
>>
>> thanks
>> Keith
>>
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