Steps to reproduce:
1) From the main menu, press the Heroes button
2) Select any hero
2) Navigate to the builds section
3) Select an owned build from the Build Browser
4) Press the edit button
5) Press the Escape key on the keyboard
6) Immediately click the Test Hero button
After following these steps, the default build for the hero will be selected, and the last edited build will have all its items removed.
Video of the bug:
The bug can also triggered if a match is found while editing a build, but the steps I've listed above don't require me to play a match every time I try to reproduce the bug.
1) From the main menu, press the Heroes button
2) Select any hero
2) Navigate to the builds section
3) Select an owned build from the Build Browser
4) Press the edit button
5) Press the Escape key on the keyboard
6) Immediately click the Test Hero button
After following these steps, the default build for the hero will be selected, and the last edited build will have all its items removed.
Video of the bug:
The bug can also triggered if a match is found while editing a build, but the steps I've listed above don't require me to play a match every time I try to reproduce the bug.