fCleanupPromiseQueue = function(pOriginalPromise) {
			if (oControl._pQueue === pOriginalPromise) {
				delete oControl._pQueue;
			}
		}
@class Utility class for generic mdc xConfig handling by utilizing the
<code>sap.ui.mdc.p13n.Engine</code> and its <code>Modificationhandler</code>.
This class should be used to handle property changes that should be persisted
as flex changes for MDC control while enabling preprocessing via customdata.

@author SAP SE
@private
@alias sap.ui.mdc.flexibility.xConfigFlex