std.mergePatch evaluates object

[Duologic]

This snippet works differently compared to go-jsonnet/c-jsonnet:

std.mergePatch({ val: error 'should not error' }, {}) + { val+:: {} }

➜ jsonnet -e "std.mergePatch({ val: error 'should not error' }, {}) + { val+:: {} }"
{ }

➜ jrsonnet -e "std.mergePatch({ val: error 'should not error' }, {}) + { val+:: {} }"
runtime error: should not error
    <cmdline>:1:23-48: error statement
    <cmdline>:1:1-55:  function <builtin_merge_patch> call

[He-Pin]

what about the sjsonnet？

[JarvisCraft]

what about the sjsonnet？

java -jar sjsonnet.jar -e "std.mergePatch({ val: error 'should not error' }, {}) + { val+:: {} }"
sjsonnet.Error: should not error
    at [Error].(<exec>:1:23)
    at [std.mergePatch].(<exec>:1:15)
    at [BinaryOp +].(<exec>:1:55)

It also errors