Andrew BarnesandEvan Almloff
2a34be5815
* fix: handle empty string in calculator plus-minus button calc_val() panics on empty string when AC is pressed before the plus-minus button. Return 0.0 early for empty input. Fixes #4858 * fix a few ci failures * fix link check --------- Co-authored-by: Evan Almloff <evanalmloff@gmail.com>