Describe the issue

Using the battery module and full-at, the format-full format is never used.

Expected behavior:
When the battery level passes the full-at, format-full format should be used.

Actual behavior:
The format-full format is never used.

Was it working before?
Never worked for me.

To Reproduce

A minimal but complete config with which the problem occurs:

[module/battery]
type = internal/battery
battery = BAT0
adapter = ADP1
full-at = 90

format-charging = charging
format-discharging = discharging
format-full = full

Polybar Log

No errors.

Environment:

• WM: i3
• Output of polybar -vvv:

Features: +alsa +curl +i3 +mpd +network(libnl) +pulseaudio +xkeyboard

X extensions: +randr (+monitors) -render -damage -sync +composite +xkb +xrm +xcursor

Build type: RelWithDebInfo
Compiler: /usr/bin/c++
Compiler flags: -march=x86-64 -mtune=generic -O2 -pipe -fstack-protector-strong -fno-plt -Wall -Wextra -Werror -Wno-noexcept-type -pedantic -pedantic-errors
Linker flags: -Wl,-O1,--sort-common,--as-needed,-z,relro,-z,now

Additional context

$ cat /sys/class/power_supply/BAT0/status
Unknown

I have a two battery setup (Thinkpad t450s)