Height of input-group-text doesn´t match

Summary

As you can see in the screenshot the height of the input-group-text (https://gitlab.com) does not match the height of the input. This behaviour can also be observed on other places on GitLab.com. Seems to be a general problem with the CSS class.

Relevant logs and/or screenshots

Firefox 66 (Windows):

Edge 44 (Windows):

Edited Apr 22, 2019 by Ghost User