regression with annotate! and backend GR

[oheil]

Fix 87b220e
of issue #2487
brings a regression:
annotate!(x,y,t)
doesn’t work anymore, one must use:
annotate!((x,y,t))
See discussion
https://discourse.julialang.org/t/plots-annotate/37784

[daschw]

That's fixed in #2597

[djsegal]

What version does this start working again in?

// thanks for the quick fix though!

[daschw]

1.0.12