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    d0a18f89
    8.10 - dirty MVAR after mutating TSO queue head · d0a18f89
    vdukhovni authored and Ben Gamari's avatar Ben Gamari committed 
    While the original head and tail of the TSO queue may be in the same
generation as the MVAR, interior elements of the queue could be younger
after a GC run and may then be exposed by putMVar operation that updates
the queue head.

Resolves #18919

(cherry picked from commit 699facec)
    d0a18f89
    8.10 - dirty MVAR after mutating TSO queue head
    vdukhovni authored and Ben Gamari's avatar Ben Gamari committed 
    While the original head and tail of the TSO queue may be in the same
generation as the MVAR, interior elements of the queue could be younger
after a GC run and may then be exposed by putMVar operation that updates
the queue head.

Resolves #18919

(cherry picked from commit 699facec)