Edited document lost its old attachment id, and the issue history shows an attachment deleted and re

What you are seeing

An edited document lost its old attachment id, and the issue history shows an attachment deleted and re-added.

#Why it happens

Editing works by deleting the existing .md attachment and uploading a replacement. There is no in-place update.

Expect this. It is how the app saves. Do not build links against a specific attachment id, and warn watchers that edits produce attachment events.

Setting	Where	What it does
View / Edit (editor mode)	Editor modal	-
Title	Editor modal	-

Limit	Value	What happens
Document title length	50 characters	Enforced by the Title input in the editor. The title becomes the attachment filename.
Large document preview	About 1,000,000 characters	Read-only previews longer than this switch to a virtualised viewer that renders in chunks as you scroll, so browser find-in-page and similar behaviour differ.
Simultaneous image loads	20	At most 20 image URLs are resolved at once, so image-heavy documents load in waves.

Editing is destructive to Jira's attachment record: the old .md attachment is deleted and a replacement uploaded, so the attachment id, upload date and author all change, watchers see delete-then-add events, and links to the old attachment id break.
If the delete succeeds but the re-upload fails, the document is lost and no error is shown. The failure is swallowed.
Nothing prevents two documents on the same issue having the same title, and renaming makes the old filename disappear.

The save deletes the old attachment first and then uploads the new one. If the upload fail

The title is the filename. Renaming uploads a differently-named file, and nothing checks w

The rest of this family.

Found it? Good.