go mod by default lead to erratic behaviour

[jobale]

Go versions: 1.13 / 1.14 ** Go module:** active Release tested: v2.0 / v2.0.1 Problem: When using go get with go module, v2.0.1 is pulled by default. Releases v2.0.1 and v2.0 does not work with go module by default: graph.Render(chart.PNG, f) for example output a 0 byte file (see issue #132)

The latest commit @962b9abdec2bd6557efa7de5113284e720d6dbc9 from 6 dec 2019 works.

Fix: Please can you provide a new release tag pointing to this last commit (or another recent one working) for go module?

[SuneelFreimuth]

I tried the method from #132 with the commit mentioned above; ~it worked using that commit and only that commit.~ Edit: Actually, it still doesn't work, still producing an empty PNG file.