How can bug attachments be added via REST API and opened in the preview within JIRA properly Edited

[Alexander Niemeier]

Scenario:
Bugs are created via REST API in JIRA, attachments are added (png, mp4...)


Current behaviour:

A: When the user adds attachments within JIRA, the attachments can be opened within the preview of JIRA, attachments are added with their related "file type"

B: When the bug is created via REST API, the attachments are added as "files" and can only be downloaded directly, not displayed with the preview

Question:
Can this somehow be specified within the input coming via REST API or is it a default of JIRA dealing with "imported" attachments?