[JENKINS-66296] Avoid unexpected polling rebuild after upgrade #1132
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JENKINS-66296 - Avoid unexpected polling rebuild after upgrade
The removal of the package protected method getJenkinsManageOrAdmin seems to have caused JENKINS-66296, an unmarshalling error in the upgrade from git plugin 4.7.2 to git plugin 4.8.0.
Restoring the package protected method seems to avoid the unmarshalling and thus avoids a problem elsewhere in the code. It is unclear to me where that problem exists or how to permanently avoid it. This change resolves the specific case described by the original submitter of the bug report and seems very low risk.
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