CustomLinqSerializer silently adds Enum to string processing on serialization but fails on deserialization

[oragain]

Describe the bug

Bug 1:
When using a custom CosmosLinqSerializer, if an object contains an enumeration property that does have the [JsonConverter(typeof(JsonStringEnumConverter))] attribute, the serializer will stringify the enum properly, but fail to retrieve the document when doing a linq query (GetItemLinqQueryable) on said property.

Bug 2: (not sure if this one is a bug or just the way the cosmos db sdk works normally)
When not using a custom serializer, the [JsonConverter(typeof(JsonStringEnumConverter))] attribute is ignored.

To Reproduce
See code sample:
CosmosDBSDKTests.zip

sorry for the number of files, but I was making sure my polymorphism was working at the same time.

Expected behavior
Bug 1:
Expect the GetItemLinqQueryable to retrieve the document

Bug 2:
That when no custom serializer are provided, actually respect the attribute?

Actual behavior
The document is not retrieved

Environment summary
SDK Version: 3.44 and 3.45
OS Version: Windows
IDE: Visual Studio 2022 preview 5

Additional context
Weirdly enough:

• if [JsonConverter(typeof(JsonStringEnumConverter))] is set on the enum itself instead of the property of the complex object, the custom CosmosLinqSerializer works as intended without the need to add the JsonStringEnumConverter.
• Adding the JsonStringEnumConverter to the list of converters make everything work too.