updater.update() fails on insert with error but still can't figure out what editing protocol it supports

[bourgeoa]

PR modified removeDocument() to also remove metadata.

The consequence is that for example fetcher.load() with options.clearPreviousData=true removes also metadata.

rdflib.js/src/fetcher.ts

Lines 2005 to 2008 in 6ab4f04

	// Before we parse new data clear old but only on 200
	if (options.clearPreviousData) {
	kb.removeDocument(options.resource)
	}

Running updater.update() fails on insert with error but still can't figure out what editing protocol it supports.
This is due to the fact that the current response is stored before being deleted just after.