Version 3.27.0: CosmosLinqExtensions.ToFeedIterator() throw NullReferenceException when query predict has inline static member

[lifeglam]

Version 3.27.0: CosmosLinqExtensions.ToFeedIterator() throw NullReferenceException when query predict has inline static member.

To Reproduce
Below code DOES NOT work on 3.27.0 (but works on 3.26.2):

var queryable = _remoteContainer.GetItemLinqQueryable(true, null, null);
Expression<Func<T, bool>> predict = (x => x.CreationTime < DateTime.UtcNow);
var query = queryable.Where(predict);
var iterator = query.ToFeedIterator();

Below code works on 3.27.0:

var queryable = _remoteContainer.GetItemLinqQueryable(true, null, null);
var dateTime = DateTime.UtcNow;
Expression<Func<T, bool>> predict = (x => x.CreationTime < dateTime);
var query = queryable.Where(predict);
var iterator = query.ToFeedIterator();

Expected behavior
ToFeedIterator() call successfully

Actual behavior
ToFeedIterator() throw NullReferenceException

Environment summary
SDK Version: 3.27.0 (3.26.2 works)

Additional context
Per release note https://github.com/Azure/azure-cosmos-dotnet-v3/blob/master/changelog.md
Might caused by Performance: Adds a LINQ optimization for member access in LINQ-to-SQL #2924

[j82w]

@notheotherben and @khdang can you take a look?

[j82w]

@lifeglam can you provide the full exception with stack trace of the null ref?

[notheotherben]

Was able to reproduce and fix this, you'll find the associated change in #3190 and please let me know if you'd like to see anything else covered there.

[j82w]

@lifeglam please upgrade to 3.27.1 which contains the fix.