As of 0.11.0 "fast-export --plain" will skip tags which can't be imported into git

[Alex Usov]

I believe it's much better to "fix" problematic tags, for example by replacing invalid characters with underscores.

[Jelmer Vernooij (jelmer)]

It should still be possible to skip tags with invalid characters entirely too. Otherwise, tools like git-bzr will end up creating dummy bzr tags when they roundtrip tags.

[Alex Usov (a-s-usov)]

Extra flag to fast-export?

Which one should be default then: renaming tags or skipping them?

[Jelmer Vernooij (jelmer)]

Skipping seems like the most reasonable default to me, that's consistent with what plain does in other situations where git can't represent certain metadata.

[Alex Usov (a-s-usov)]

And if you pass something like --simple --rewrite-tags it will rewrite them.