Regression Search in Issue list changed

Summary

We run Gitlab CE 15.2.0.

Before this Version you could search the issues by a part of a word in the issue titel and had success. Now you have to type the full word.

For example before you could type aa and got all issues which had the letters aa in the titel for example aabbcc ddeeff.

Now I have to type aabbcc to find the issue.

Steps to reproduce

1. update to 15.2.0
2. create an issue with the titel aabbcc ddeeff
3. search aa in the issue list
4. the issue aabbcc ddeeff is not listed

Example Project

https://gitlab.com/jonknu/issue-1/-/issues/?search=aa&sort=created_date&state=opened&first_page_size=20

What is the expected correct behavior?

It should list the issue aabbcc ddeeff

It is very useful if you dont now the exact spelling of aabbcc