[Bug] markLine visibility depends on series data values

### Version

6.0.0

### Link to Minimal Reproduction

[Example](https://echarts.apache.org/examples/en/editor.html?c=line-simple&code=PTAEFsEMCcGsBkCWA7ApqAbogzogRogDaIAuAnqACaoAOqyl2oA9sqNqtIqk5ZCZEyRCAVx4AoZjRKJWoALygA3uNCgAHgEF1OAFzLVa0OTr6A5AGN-qAObNoZMwBpDavgP0BtMwFlWz0DMAFTEAswB1VEowoIALETCAMS4wgGV-NJFkMwBdQwBfFzUybT1lQtBCW3pKXSVCww4uHi9XAyMjd0gvAEYAVgAGJ1AAJgBmIdGRgBZhkZ6ADmGesb7l6YB2OYA2AZyijuMyU0DiNADkSHBUc3geszaGjqVQNrd-btBPEZH9oxBQLFENQmFA4Eg0KAAO6xeigO5UHioKoWEhRUAAM2gzHAlWqDAUoAAQgBVADib1AIC6Xh-v2GVLAYIQKHQ0FQUBQTBhcIRIORqFR6KxOLxNhqlJMN0C2CsJDR0AC2DI4DwzEIqUQAC9pZNLtdzD54LKMgcOsyIdKXjSvkoSjpsPo6fk_mdUKlyFV9EoLOr7LozOzovlQPlHoY8vkANxAA)

### Steps to Reproduce

Deselect 'L1' from the legend, and the second series _makLine_ disappears. This is due to second series data being **smaller** than the _makLine_ value.

### Current Behavior

The second series _makLine_ disappears.

### Expected Behavior

The second series _makLine_ should remain visible regardless of data values.

### Environment

```markdown

```

### Any additional comments?

_No response_