In the 2nd half of bar 144 and 146 there are no accidentals in A. Chopin was generally convinced that notes written at the same pitch do not require repeating accidentals regardless of the presence of an octave sign. The then contemporary rules were not fully established yet, which is proven by the fact that the notation was left unchanged in FE1. Eventually, however, both FE2 (→EE) and GE added all accidentals. Similarly, in further such passages.
Compare the passage in the sources»
category imprint: Interpretations within context; Differences between sources
issues: Accidentals in different octaves, GE revisions, FE revisions, Inaccuracies in A, Errors repeated in FE
notation: Pitch