Line protocol - tag value cannot end with backslash even if escaped - is it a known limitation?

TIL that a line protocol string cannot end with the backslash “” character, even if you escape it.
But it can end with other special chars, like space.

Telegraf will output the following error:

2020-03-02T15:09:50Z E! [outputs.influxdb] When writing to []: received error unable to parse {LineProtocolStringhere} : invalid tag format

as an example:

#Those are invalid rows
test, Tag1=HelloThere\ value1=1
test, Tag1=HelloThere\\ value1=1

#This is valid
test, Tag1=HelloThere\  value1=1

I just want to know if this is a known limitation or not, since I didn’t find anything about it on the docs

(I’ve opened an issue anyway)Preformatted text