Combat screen, unicorn corps sprite is displayed over the battle dwarves sprite

[LeHerosInconnu]

Preliminary checks

• I've checked that there aren't other open issues on the same topic.
• I've checked that this issue is reproducible on the latest snapshot build.

Platform

Windows

Describe the bug

In fheroes2, the unicorn corps sprite is displayed over the battle dwarves sprite.

In fheroes2:

Save file

Here is the save file (end the turn):
Before sprite unicorn dwarf 01.zip

Additional info

Related issues: #8796, #8410.