Portal 2 downloads Workshop maps while running a sourcemod.

[kotenok2000]

When i start a sourcemod i notice, that "workshop" directory is created in maps folder, in which subscribed Steam Workshop maps are being downloaded.
Way to reproduce:
1.Add a portal 2 sourcemod.
2. Subscribe to steam workshop maps.
3. Start sourcemod.
4. Maps are downloaded to sourcemod's maps folder.