allErrs = append(allErrs, field.Duplicate(fldPath, condition.Expression))
			continue
		}
		seenExpressions.Insert(condition.Expression)
		compilationResult, err := compileMatchConditionsExpression(fldPath, compiler, condition.Expression)
		if err != nil {
			allErrs = append(allErrs, err)
			continue
		}
		compilationResults = append(compilationResults, compilationResult)
	}