config: fix the panic caused by zero RegionSplitSizeMB (#8324)#8327

Merged

ti-chi-bot[bot] merged 2 commits intotikv:release-6.5from ti-chi-bot:cherry-pick-8324-to-release-6.5

Jun 26, 2024

+25-6

Commits on Jun 25, 2024

This is an automated cherry-pick of tikv#8324

JmPotato
authored and
ti-chi-bot
committed
Resolve the conflicts
JmPotato
committed