Warning about negative sliding

```
WARN:negative sliding : sliding/min_pts/_fragMainInitialPTS/startPosition/_fragMainInitialStartPosition:-0.01499999999987267/-22483401/-22893396/2052.763/1642.753
WARN:negative sliding : sliding/min_pts/_fragMainInitialPTS/startPosition/_fragMainInitialStartPosition:-0.01499999999987267/-22453401/-22893396/2082.763/1642.753
WARN:negative sliding : sliding/min_pts/_fragMainInitialPTS/startPosition/_fragMainInitialStartPosition:-0.01599999999962165/-22423401/-22893396/2112.764/1642.753
WARN:negative sliding : sliding/min_pts/_fragMainInitialPTS/startPosition/_fragMainInitialStartPosition:-0.015999999999166903/-22393401/-22893396/2142.764/1642.753
WARN:negative sliding : sliding/min_pts/_fragMainInitialPTS/startPosition/_fragMainInitialStartPosition:-0.014999999998963176/-22363400/-22893396/2172.764/1642.753
WARN:negative sliding : sliding/min_pts/_fragMainInitialPTS/startPosition/_fragMainInitialStartPosition:-0.014999999998963176/-22333400/-22893396/2202.764/1642.753
WARN:negative sliding : sliding/min_pts/_fragMainInitialPTS/startPosition/_fragMainInitialStartPosition:-0.014999999998963176/-22303400/-22893396/2232.764/1642.753
WARN:negative sliding : sliding/min_pts/_fragMainInitialPTS/startPosition/_fragMainInitialStartPosition:-0.014999999998963176/-22273400/-22893396/2262.764/1642.753
WARN:negative sliding : sliding/min_pts/_fragMainInitialPTS/startPosition/_fragMainInitialStartPosition:-0.015999999998712156/-22243400/-22893396/2292.765/1642.753
```

Hi, could you explain, is it bad sign, that there is a negative sliding.
And how to prevent such behavior?

Start by searching the codebase for the exact `WARN:negative sliding` message and trace the values shown in the log. Determine whether the negative sliding is expected for this playback case and document the conditions or configuration needed to prevent it, if prevention is supported.

Written by the indexing model from the issue text.