Both the change introduced in GE1 and the one in FE definitely come from Chopin who was looking for the smartest connection of this bar with the following one, as far as the piano skills and harmony are concerned. At the same time, he most probably wanted to emphasise the chromatic movement of the bass, hence the arbitrary version of EE2 certainly does not correspond to his intention. The last crotchet in bar 368 underwent the same transformation, which excludes a possibility of a mistake in both versions.
Compare the passage in the sources»
category imprint: Differences between sources
issues: Accompaniment changes, Authentic corrections of FE, Authentic corrections of GE
notation: Pitch