Update Spring MVC to allow use of query param as replacement of path extension for content negotiation [SPR-15649]

[spring-projects-issues]

Rossen Stoyanchev opened SPR-15649 and commented

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This issue is a sub-task of #20198

Issue Links:

• Fallback to defaultContentType if nothing more specific and producible has been specified in request [SPR-11114] #15740 Fallback to defaultContentType if nothing more specific and producible has been specified in request