Running the following code snippet yields something unexpected

p = wikitextparser.parse("{{A|a=\n\nx\n\n|b=xxx}}")
print(p)
t = p.templates[0]
t.set_arg("a", t.get_arg("a").value)
print(p)

Since the second to last line sets an argument to itself, I was expecting that p stays the same in both print statements. However, 4 lines instead of 2 are padded to "x" both before and after it. I'm wondering if this is the expected behavior or a bug.

The workaround is quite simple since we just have to do t.get_arg("a").value.strip() to get rid of the extra lines, but I'm wondering if this can be fixed. Thank you!

One concern is that a fix might also break the behavior of previously written programs that rely on the fact that wikitextparser doubles newlines.