reading jagged array having no concrete element types does not serialize NULL

[ziaullah47]

We are having a jagged array of non strict types, like the one below,
[
[ "value", "value", "value", "value", "value", "", null ]
]
while trying to get it deserialized with System.Text.Json.Serialization, the null value is skipped, and parsing all the elements we are unable to the get the NULL,

[
[ "value", "value", "value", "value", "value", ""]
]

Tried different serialization options around this as like Ignore NULL etc.