From @cpansprout

I fixed these in two recent commits​:

3bc8ec9​:

$ perl5.18.1 -e 'qr/@​a(?{})/'
Bizarre copy of ARRAY in subroutine exit at -e line 1.

d100ca4​:

$ ./perl -e 'qr/\Q(?{})/'
Assertion failed​: (AvFILLp(PL_comppad) == 0), function Perl_pmruntime, file op.c, line 5395.
Abort trap​: 6

I recommend that we backport the fixes to both maint-5.20 and maint-5.18.

d100ca4 looks complex. If necessary, we could just delete the assertion from the maint branches, instead of backporting the new assertion.

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Father Chrysostomos

@steve-m-hay - Status changed from 'new' to 'pending release'

From @khwilliamson

Thanks for submitting this ticket

The issue should be resolved with the release today of Perl v5.22, available at http​://www.perl.org/get.html
If you find that the problem persists, feel free to reopen this ticket

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Karl Williamson for the Perl 5 porters team

@khwilliamson - Status changed from 'pending release' to 'resolved'