clojure.repl/doc repeats doc string in output for special forms in Clojure 1.9.0

Description

Here is output from Clojure 1.8.0:

Here is the corresponding output from Clojure 1.9.0:

This repetition only occurs when calling clojure.repl/doc or clojure.repl/print-doc for special form symbols, not for other symbols like macros and functions. It was introduced when modifying clojure.repl/print-doc when adding the ability to print specs in its output, and the fix is straightforward.

Screened by: Alex Miller

Screening: Some useful variants checked in testing this:

Environment

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Andy Fingerhut

December 16, 2017, 12:20 AM

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Patch CLJ-2295-v1.patch dated 2017-Dec-15 is one possible way to fix this issue. Verified that output for other cases, e.g. macros, is unchanged from Clojure 1.8.0 with these changes, except for the new Spec output, which should be kept.

Alex Miller

August 28, 2020, 3:22 PM

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Patch applied for 1.10.2