Has or Have Fixed?

Technically speaking, "the issue is fixed" means "somebody fixes the issue". And "the issue has been fixed" means "somebody has fixed the issue". So, the correct usage in all probability should be "the issue has been fixed". However, "the issue is fixed" is used quite as often.

Have fixed meaning?

From Longman Dictionary of Contemporary English have fixed ideas/opinions to have very definite ideas or opinions that you will not change – often used to show disapprovalhave fixed ideas/opinions about/on He has very fixed ideas about how a wife should behave. → fixed.

Will get it fixed meaning?

adj. 1 attached or placed so as to be immovable. 2 not subject to change; stable.