Merge pull request #25754 from eileenmcnaughton/quick_config

Extract `isMembershipPriceSet` (`useForMember`)

diff --cc CRM/Contribute/Form/ContributionBase.php
Simple merge

diff --cc tests/phpunit/CRM/Contribute/Form/ContributionTest.php
Simple merge

diff --cc tests/phpunit/CiviTest/CiviUnitTestCase.php
Simple merge