Searching a text with equal ( = ) sign fails with error

Summary

Searching a text starting or ending with an equal sign (=) fails with an error in Confluence.

Environment

Confluence 1000.929.0

Steps to Reproduce

• Go to Confluence in Cloud
• Search for any of the following

=

=text

text=

Expected Results

Search result or no result found message should appear.

Actual Results

Using quick search, the page returned shows the message

Oops - an error has occurred. System Error

Using the search page, an error message is returned. 

Oops, something went wrong with your search.We could not successfully complete the search. java.lang.IllegalArgumentException: INVALID_SYNTAX_CANNOT_PARSE: Syntax Error, cannot parse d=:

Notes

Workaround