The last pcre3 upload failed to build on most architectures including
amd64. I looked into the problem today and figured that a simple rebuild
would "fix" the problem. I presume that this is due to a gcc-8 upload
since. A give-back will only work around the issue at best, and #904506
is still there. Still it will remove the urgency. Presently the pcre3
source/binary version skew breaks bootstrap QA as pcre3 builds
transitively essential packages. So please consider giving it back to
help with QA. If it fails again, I'll look into NMUing.