typo in parameter key for absolute solver tolerance

4 jobs for issue/solver_tolerance in 31 minutes and 57 seconds (queued for 17 minutes and 1 second)
Status Job ID Name Coverage
  Test
passed #8644
debian:10 clang-6-libcpp-17

00:25:50

passed #8643
debian:10 gcc-8-17

00:18:06

passed #8645
debian:9 gcc-6-14

00:19:03

passed #8646
ubuntu:18.04 clang-6-17

00:24:25