The test that was added in commit e05650e6868eab2dbb9f58c4786bcc71afc4ffce
would break a subsequent run of a test encryption.innodb-bad-key-change
because some pages in the system tablespace would be encrypted with
a different key.
The failure was repeatable with the following invocation:
./mtr --no-reorder \
encryption.create_or_replace,cbc \
encryption.innodb-bad-key-change,cbc
Because the crash was unrelated to the code changes that we reverted
in commit eb38b1f703fb84299680f9c5a75ea970be7aee1d
we can safely re-apply those fixes.
Let us shrink the test encryption.create_or_replace so that it can
run on the CI system, also on the embedded server.
encryption.create_or_replace_big: Renamed from the original test,
with the subset of encryption.create_or_replace omitted.
Test create_or_replace should make sure that background decrypt
operation is finished and flush all dirty pages using restart
to clean up the database before ending.
