In the last third on the 3rd crotchet in the bar in FE (→GE1→GE2), there is no 
restoring e2. The correct notation is featured in EE and GE3; the mark was also added in FES. In melodic lines led in thirds, such mistakes would happen to Chopin quite often – cf. e.g. bars 88 and 90 in this movement of the Concerto as well as the Etude in G
minor, op. 25, no. 6, bar 12 or the Mazurka in E major, op. 6, no. 3, bars 11, 13 and analog. A similar situation in bar 41.
Compare the passage in the sources»
category imprint: Interpretations within context; Differences between sources
issues: Annotations in teaching copies, EE revisions, Errors in FE, Omissions to cancel alteration, GE revisions, Annotations in FES, Errors repeated in GE
notation: Pitch