The 
sign was reproduced inaccurately both in FE and EE, each time shortening the ordered time of holding the pedal.
In some of the copies of GE1a, graphic retouches aimed probably at eliminating defects around the slur in bars 102-103 were performed (the defects are visible on the copy presented in our system). While performing corrections, the sign discussed in bar 99 was deleted by mistake.
Compare the passage in the sources »
category imprint: Differences between sources
issues: Inaccuracies in FE, Errors resulting from corrections, Errors in GE, EE inaccuracies
notation: Pedalling