Fix bug writing unknown tags

[simon-20]

This fixes the bug writing unknown tags. With this change, unknown tags will be written out as they were in the original file.

[shapiromatron]

Thanks for the submission - it looks like a valuable feature! Could you please write a test as well for this?

[simon-20]

Yes, I will do, on both counts. Should the make test command work/be working on Windows?

[shapiromatron]

Yes, I will do, on both counts. Should the make test command work/be working on Windows?

I dont think it'll work on windows. The makefile just calls pytest, so you can just call that directly:

rispy/Makefile

Lines 51 to 52 in d795f51

	test: ## Run unit test suite
	@py.test

[simon-20]

Yes, I will do, on both counts. Should the make test command work/be working on Windows?

I dont think it'll work on windows. The makefile just calls pytest, so you can just call that directly:

rispy/Makefile

Lines 51 to 52 in d795f51

	test: ## Run unit test suite
	@py.test

I did get the tests to work on Windows; I had a misconfiguration of make on my end.

[shapiromatron]

LGTM - great addition!