[BUG] InexactError in pyplot-backed heatmap with a zero matrix.

[remy-luisant]

Two similar issues, but neither seems to be this exact one. (#3426 and #3331)

Details

using Plots
pyplot()
heatmap(zeros(20, 20))

Error showing value of type Plots.Plot{Plots.PyPlotBackend}:
ERROR: InexactError: check_top_bit(UInt64, -9223372036854775481)
Stacktrace:
[1] writefixed (repeats 5 times)
@ ./ryu/Ryu.jl:76 [inlined]
[2] format_fixed
@ ~/.julia/packages/Showoff/wogB3/src/ryu.jl:30 [inlined]

Backends

This bug occurs on ( insert x below )

Backend	yes	no	untested
gr (default)			x
pyplot	x
plotly			x
plotlyjs			x
pgfplotsx			x
inspectdr			x

Versions

Plots.jl version: Plots v1.11.2
Backend version (]st -m): PyPlot v2.9.0
Output of versioninfo():
Julia Version 1.6.1
Commit 6aaedecc44* (2021-04-23 05:59 UTC)
Platform Info:
OS: Linux (x86_64-pc-linux-gnu)
CPU: Intel(R) Core(TM) i7-8550U CPU @ 1.80GHz
WORD_SIZE: 64
LIBM: libopenlibm
LLVM: libLLVM-11.1.0 (ORCJIT, skylake)

[lobingera]

Cannot reproduce in Plots v1.15

[remy-luisant]

I can confirm, it got fixed by then. I didn't realize how old of a setup I'm running. Apologies for the noise.