Serialize Path objects as absolute paths for RPC

[DasBabyPixel]

Motivation

#1303

Modification

Only send the path as an absolute path over RPC

Result

Relative paths can be used with pull and work correctly

Other context

Fixes #1303

[derklaro]

I think it's an oversight that pull uses RPC, imo it should use the chunked data transfer like the other methods as well.

[DasBabyPixel]

I think it's an oversight that pull uses RPC, imo it should use the chunked data transfer like the other methods as well.

you're probably correct. I also don't know if this works well in clusters. I just know this fixes the issue for me, even if it is not ideal

[derklaro]

I can fix the pull method later. I'm not sure if the path serializer is a good idea at all, maybe we should just remove it. If we leave it, then it probably shouldn't serialize absolute paths, and leave the decision about aboslute vs relative paths to the caller.