[Bug] r.stream.snap deletes table of input map from database

[geografin]

Describe the bug

r.stream.snap command seem to delete a table that is connected to input map.

To reproduce

It should be done with any ready stream network. Use any radius and threshold you want.

1. Execute 'v.in.ogr input=gages.shp output=gages --overwrite' to import any hydrologic stations
2. Check if table gages exists with command db.tables
3. Execute 'r.stream.snap input=gages stream_rast=streams threshold=$threshold radius=$radius output=corr_gages --overwrite'
4. Check db.tables and see that table gages doesn't exist

Expected behavior

r.stream.snap should not touch table "gages". Also as the result corr_gages has no link to database, user should be able to make a link with 'v.db.connect map=corr_gages table=gages' but because of this incorrect behaviour we can't do that.

Screenshots

System description

• Operating System: Linux, on Docker
• GRASS GIS version: 8.4.1dev

Additional context