[Bug] Graph type with emphasis focus 'adjacency' - hovering on legend always highlights same nodes

[leafOfTree]

Version

5.6.0

Link to Minimal Reproduction

https://echarts.apache.org/examples/en/editor.html?c=graph-label-overlap&code=LYTwwgFghgTgLgOgM4QPYHcAyqoBMCWAdgOYAUAlANwBQAJAsQKZwBSAygPIBypAShxwAqAfQAKAQUEAJAAQBqGQHIA9LihwoyqEiTNV6zQBtGSALTB8umFABGxpAgBWSVIUUAaGQDMAroQDGcPiuMqTE1gAOEOQyAN7UMjKgkLCIEPi4jNh4RGRUCTKoEUEhALxxBYlwqKiGQREAXHEAvu6VMsZMhLhNANrtifGJw8NqGk3hUFEI_uqMxKgw-CYIwFOkvgElhKFQMUMjhzDMPjA7UAiEUMCMNIfDzeQDMs3tALptI1bLSH3PB_crjcmopMCYZABZSyMax2EweZ5VEARRggyZRBH3RKGKAgVA-OAgwiuRiYrFjKATSIQS6oTJIT5YwxEADWvxk6JpzMIbMZ91mcHmix-VKmNIFQqWJj5RxwwCacBgPkYMpGOJsjEMTQBWJQGAVSpViOGEVQSHw2xBS2IEDgZKx3kWazggpgINiNmaimNrWN6s1mFx-MJFQdiXSmQ4ADcYTjGjJFcqfarhkhZsZMPgLCGdfcLIQmgAGBAAFhTIzWAA8mgAmZN-oiMNhwEDGbXGxL-WqLEEuU7-Unl4b-U4xwgmdnFgDM9YdjGAUW0lnbYcdI_ZijwjigA4CIG9Dte9yPwzeBWadyS4Gg8GQzA4xWChFIRW2-UelCAA

Steps to Reproduce

1. hover on different legend items

Current Behavior

A fixed set of nodes are highlighted no matter which legend item is hovered

Expected Behavior

no highlight, or highlight the nodes with the same category to the legend item hovered

Environment

- OS:
- Browser:
- Framework:

Any additional comments?

[helgasoft]

Graph categories hover emphasis could be a new Feature, but I don't believe is a bug since the API documentation does not mention it anywhere.
To fix - remove series emphasis or make it emphasis: {focus:'none'} and chart will behave like the original.