[Bug] 合并行出现看不懂的问题

Version

1.19.0

Link to Minimal Reproduction

https://codesandbox.io/p/devbox/focused-waterfall-d75mpr

Steps to Reproduce

使用列配置合并出现问题
{
field: 'balanceDifference',
title: '回函金额差异',
width: 120,

		mergeCell: (
			v1: any,
			v2: any,
			extraArgs: {
				source: { col: number; row: number }
				target: { col: number; row: number }
				table: BaseTableAPI
			}
		) => {
			const { table, source, target } = extraArgs
			const prevRecord = table.getCellOriginRecord(source.col, source.row)
			const currentRecord = table.getCellOriginRecord(target.col, target.row)

			// 如果两条记录都有 matchGroupId 并且它们相等，则合并
			if (prevRecord?.matchGroupId && currentRecord?.matchGroupId) {
				return prevRecord.matchGroupId === currentRecord.matchGroupId
			}
			// 否则不合并
			return false
		}
	},

Current Behavior

Expected Behavior

预期数字展示正常

Environment

- OS:
- Browser:
- Framework:

Any additional comments?

No response