Autocomplete incorrectly interprets a page title with square brackets in the title - [ , ]

Steps to Reproduce

1. Create a page with a title like 'Here is [a title] of a page'.
2. Copy the URL of that page
3. Paste it into a Confluence editor
   • Expected result - autocomplete inserts a link to the page with 'Here is [a title] of a page' as the link text.
   • Actual result - autocomplete only links the text between the [ ] characters and the link is inserted as a 'create page' link, because that page does not exist.

Related bug

1. Create a page with title: Hello World
2. Create a page with a title like: This will break [Hello World] the autocomplete
3. Copy URL of the page
4. Paste it into the Confluence editor
   • Expected result - autocomplete inserts a link to the page with 'Here is [a title] of a page' as the link text.
   • Actual result: autocomplete creates the link named "Hello World" to the page "Hello World"