It is uncertain how the version of GE came to life, yet it is difficult to imagine that it could have come from Chopin in this form. This version was probably based on the conviction that the dynamics of the last chords has to be indicated in the piano part, too, which eventually led to the repetition of the markings written in Morch, not by Chopin. The completion of the piano part could have been ordered by the reviser, although one cannot exclude that the action could have been inspired by Chopin. In the second case, the composer probably had one 
in mind, which the overzealous engraver, inspired by the notation of Morch, repeated three more times. This scenario seems to be confirmed by a Chopinesque proofreading of FE (→EE), in which two out of four markings were removed. According to us, the second mark (in bar 512) was left by inadvertence or in order to avoid excessive corrections in the corner of the plate, hence in the main text we suggest a only in bar 511.
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category imprint: Differences between sources
issues: GE revisions, Authentic corrections of FE
notation: Verbal indications