The presence of two mutually exclusive dynamic indications in A can be explained by an unfinished correction – Chopin first wrote one indication and then the other one, probably planning to erase the first one together with the other marks that were supposed to be removed (e.g. the staccato dots in bar 102 or 
in bar 155). However, the corrections remained unfinished, hence it is uncertain whether Chopin wanted to restore , in accordance with the dynamics at the beginning of the Sonata, or to introduce 
, which would provide the recapitulation with a different expressive nuance. According to us, the first possibility is more likely, hence in the main text we provide . A similar conclusion was reached by the reviser of GE (→FE,EE,IE).
Compare the passage in the sources»
category imprint: Differences between sources; Editorial revisions; Corrections & alterations; Source & stylistic information
issues: Corrections in A, Errors resulting from corrections, GE revisions, Errors of A
notation: Verbal indications