Currently satprep_prepare_maintenance.py completely rewrites the verification log when executed with -k (skip monitoring) or -K (skip snapshots). When preparing maintenance in batches (e.g. productive systems after development systems) the verification log is incomplete and/or contains invalid information.

The behavior needs to be changed like this:

• If vlog exists: append information
• If vlog exists and contains incorrect information (monitoring/snapshots): correct them
• Append/correct information only within selected mode (monitoring only with -K or any, snapshots only with -k or any)