add FIXMEs for Coq bug work-arounds

6 jobs for ci/ralf/mangle in 12 minutes and 30 seconds (queued for 4 seconds)
Status Job ID Name Coverage
  Build
passed #87861
fp
build-coq.8.10.2

00:05:38

passed #87860
fp-timing
build-coq.8.11.2

00:04:26

passed #87859
fp
build-coq.8.12.0

00:05:30

passed #87863
fp
build-coq.8.8.2

00:04:30

passed #87862
fp
build-coq.8.9.1

00:05:19

passed #87858
fp
build-coq.dev

00:12:30