sum.golang.org: responding with a 410 fifteen minutes after publishing a new module version #42809
Description
$ go version
go version devel +f7a80af935 Mon Nov 23 05:47:51 2020 +0000 linux/amd64
$ go get -d github.com/multiformats/go-multicodec@v0.2.0
github.com/multiformats/go-multicodec@v0.2.0: verifying module: github.com/multiformats/go-multicodec@v0.2.0: reading https://sum.golang.org/lookup/github.com/multiformats/go-multicodec@v0.2.0: 410 Gone
server response: not found: github.com/multiformats/go-multicodec@v0.2.0: invalid version: unknown revision v0.2.0
$ GONOSUMDB='*' go get -d github.com/multiformats/go-multicodec@v0.2.0
$ GOPROXY=direct GONOSUMDB='*' go get -v -d github.com/multiformats/go-multicodec@v0.2.0
At the time of running these commands, I pushed the new version via git tag -a v0.2.0 && git push --tags over fifteen minutes ago. Why am I still getting a 410?
Note how skipping sum.golang.org alone, or skipping both the sumdb and proxy, make the go get work. These commands were run outside of any module.
At first I assumed I was holding something wrong, but I've triple-checked everything. You can see the version at https://github.com/multiformats/go-multicodec/blob/v0.2.0/go.mod. I realise that the tag says "five hours ago", because that's when I tagged it - but I only pushed the tag fifteen minutes ago.