Some template ids contain multiple identical tags

[daffainfo]

Some templates have the same tags:

• https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2019/CVE-2019-9922.yaml#L31
• https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2018/CVE-2018-6605.yaml#L29
• https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2020/CVE-2020-23972.yaml#L33
  etc.

And there are many more, I can't list them all here, I believe the problem starts from these commit:

bdd749d