fix: do a snapshot state reset atomically (#317)

Description

Do a snapshot state reset atomically to avoid the moment when the DLE does not have a snapshot

Related issue

#317 (closed)

Examples

Checklist

• the MR description has been reviewed
• this MR contains text changes and they have been reviewed OR there are no texts changes
• this MR contains GUI/CLI changes and they have been reviewed OR there are no GUI/CLI changes
• this MR contains API changes, specifications reflect those changes and they have been reviewed OR there are no API changes

Closes #317 (closed)