!10488: fix for signature merging crashing when ran with -ddump-rn-trace · Merge requests · Glasgow Haskell Compiler / GHC · GitLab

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Bartłomiej Cieślar requested to merge barci2/ghc-dev:backpack-ddump-trace-rn-bug into master May 19, 2023

As described in #23424 (closed), in some cases backpack signature merging crashes when ran with -ddump-rn-trace. This MR fixes this bug.