JsonPointer.append(JsonPointer.tail()) includes the original pointer

[Mahoney]

Given the following code:

var original = JsonPointer.compile("/a1/b/c");

var tailPointer = original.tail();

var other = JsonPointer.compile("/a2");

var concatenated = other.append(tailPointer);

I would expect concatenated to be the same as JsonPointer.compile("/a2/b/c").

However, instead it is JsonPointer.compile("/a2/a1/b/c"), because append appends tail._asString which still contains the segments from before tail() was called.

[cowtowncoder]

That sounds like a bug indeed. Thank you for reporting this @Mahoney !

[cowtowncoder]

Fix to this is safe enough, will include in 2.16 branch for 2.16.1.