Issue with Links in HTML File

Hello,

we have a bunch of auto generated html release notes that we plan to store in a sharepoint document libary.

These html release notes include https links to jira tickets. 

Linked adress is:  https://jira.*********/browse/PDVTLF-26 

If I open the file with the sharepoint preview option and hover over the link, the link is now changed to:

https://*******group.sharepoint.com/jira.********/browse/PDVTLF-26 

It seems that the prefix from our sharepoint tenant is added automatically. I don't know why. I'd like to avoid that, cause the links are now pointing to a non existing source and hence aren't working any longer.

Do you have an idea how to fix that?

Thx