Failed to extract an entry from an array generated by a filter

[jmlamare]

For Example

The following inputs generate no result
JSON: [{"a":1,"b":"X"},{"a":2,"b":"Y"},{"a":3,"b":"Z"}]
EXPR: $[?(@.a==1)][0]

[ghl3]

For a concrete example:

JsonPath.read("[{\"x\":\"a\"}, {\"x\":\"b\"}]", "[?(@.x == 'a')]")

returns:

[{x=a}]

but

JsonPath.read("[{\"x\":\"a\"}, {\"x\":\"b\"}]", "[?(@.x == 'a')][0]")

returns

[]

We would expect it to return

{"x"="a"}

This appears to happen when you do an index selection directly after a filter.

[lakshan93]

Are there any workaround to achieve this value?

[kallestenflo]

Duplicate of #272