MDEV-25037 : SIGSEGV in MDL_lock::hog_lock_types_bitmap
We should not call mdl_context.release_explicit_locks() in
Wsrep_client_service::bf_rollback() if client is quiting because
it will be done again in THD::cleanup().
Note that problem with GET_LOCK() / RELEASE_LOCK() will be fixed
on MDEV-30473.
MDEV-30404: Inconsistent updates of PAGE_MAX_TRX_ID on ROW_FORMAT=COMPRESSED pages
page_copy_rec_list_start(): Do not update the PAGE_MAX_TRX_ID
on the compressed copy of the page. The modification is supposed
to be logged as part of page_zip_compress() or page_zip_reorganize().
If the page cannot be compressed (due to running out of space),
then page_zip_decompress() must be able to roll back the changes.
This fixes a regression that was introduced in
commit 56f6dab1d0e5a464ea49c1e5efb0032a0f5cea3e (MDEV-21174).
MDEV-30465 : Galera test galera_sr.MDEV-27615 takes 5mins
After d7d3ad69 we should use KILL_CONNECTION_HARD to interrupt
debug_sync waits. Test case uses debug_sync and then disconnects
connection from cluster.