fix: Preserve count=0 in RunClient's charge #511

Job	Run time
PR title check	3s
Tests / Integration tests (3.14, ubuntu-latest)	2m 24s
Code checks / Actions lint check	29s
Tests / Integration tests (3.11, ubuntu-latest)	2m 18s
Code checks / Spell check	6s
Docstrings checks / Docstrings checks	11s
Code checks / Lint check / Lint check (3.13)	14s
Code checks / Lint check / Lint check (3.14)	13s
Code checks / Type check / Type check (3.11)	19s
Code checks / Lint check / Lint check (3.12)	14s
Code checks / Lint check / Lint check (3.11)	12s
Doc checks / Doc checks / Docs check	1m 3s
Code checks / Type check / Type check (3.14)	16s
Code checks / Type check / Type check (3.13)	14s
Code checks / Type check / Type check (3.12)	14s
Tests / Unit tests / Unit tests (ubuntu-latest, 3.12)	47s
Tests / Unit tests / Unit tests (windows-latest, 3.12)	1m 1s
Tests / Unit tests / Unit tests (windows-latest, 3.11)	1m 6s
Tests / Unit tests / Unit tests (windows-latest, 3.13)	1m 0s
Tests / Unit tests / Unit tests (ubuntu-latest, 3.14)	43s
Tests / Unit tests / Unit tests (ubuntu-latest, 3.11)	39s
Tests / Unit tests / Unit tests (windows-latest, 3.14)	55s
Tests / Unit tests / Unit tests (ubuntu-latest, 3.13)	43s
	15m 24s

Provide feedback