The Maximal Starting Repertoire – MSR-5 Overview and Rationale (https://www.icann.org/en/system/files/files/msr-5-overview-06apr21-en.pdf ), Section 5.7.5 (page 27}, says “U+01C0 and U+01C1 are indistinguishable from the punctuation marks U+007C and U+2016 in certain user interface fonts….”  Yet the MSR-5 (I’m looking at the HTML version here: https://www.icann.org/sites/default/files/packages/lgr/msr/msr-5-wle-rules-06apr21-en.html) currently includes Arabic Letter Alef (U+0627) which appears to have exactly the same conflict.  There should at least be a footnote indicating that an exception has been made in this case, and explaining why it was made.

 

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Bill Jouris