crimson/osd: fix assertion failure in OpSequencer on replay.

crimson/osd: fix assertion failure in OpSequencer on replay.

Commit b5efdc6f1c9563357d7dfd33a8f379053592a215 has unified
the interruption handling among `InternalClientRequest` and
`ClientRequest`. Unfortunately, a call to `maybe_reset()` of
`OpSequencer` has been overlooked and dropped leading to the
`assert(prev_op > last_unblocked)` assertion failure in
`start_op()`.

This was the root cause of the following problem at Sepia:

```
rzarzynski@teuthology:/home/teuthworker/archive/rzarzynski-2021-05-26_12:20:26-rados-master-distro-basic-smithi/6136929$ less ./remote/smithi194/log/ceph-osd.6.log.gz
...
DEBUG 2021-05-26 20:24:53,988 [shard 0] ms - [osd.6(client) v2:172.21.15.194:6804/34047 >> client.4453 172.21.15.67:0/3814935464@37042] <== #1
 === osd_op(client.4453.0:5 12.6 12.7fc1f406 (undecoded) ondisk+write+known_if_redirected e52) v8 (42)
DEBUG 2021-05-26 20:24:53,988 [shard 0] osd - client_request(id=4, detail=osd_op(client.4453.0:5 12.6 12.7fc1f406 (undecoded) ondisk+write+known_if_redirected e52) v8): start
DEBUG 2021-05-26 20:24:53,988 [shard 0] osd - client_request(id=4, detail=osd_op(client.4453.0:5 12.6 12.7fc1f406 (undecoded) ondisk+write+known_if_redirected e52) v8): in repeat
DEBUG 2021-05-26 20:24:53,988 [shard 0] osd - client_request(id=4, detail=osd_op(client.4453.0:5 12.6 12.7fc1f406 (undecoded) ondisk+write+known_if_redirected e52) v8) same_interval_since: 19
DEBUG 2021-05-26 20:24:53,988 [shard 0] osd - do_recover_missing check for recovery, 12:602f83fe:::foo:head
DEBUG 2021-05-26 20:24:53,988 [shard 0] osd - client_request(id=4, detail=osd_op(client.4453.0:5 12.6 12:602f83fe:::foo:head {write 0~128 in=128b} snapc 0={} ondisk+write+known_if_redirected e52) v8): got obc lock
...
DEBUG 2021-05-26 20:25:21,810 [shard 0] osd - client_request(id=4, detail=osd_op(client.4453.0:5 12.6 12:602f83fe:::foo:head {write 0~128 in=1
28b} snapc 0={} ondisk+write+known_if_redirected e52) v8): in repeat
...
DEBUG 2021-05-26 20:25:21,809 [shard 0] osd - should_abort_request operation restart, acting set changed
...
DEBUG 2021-05-26 20:25:21,813 [shard 0] osd - client_request(id=4, detail=osd_op(client.4453.0:5 12.6 12:602f83fe:::foo:head {write 0~128 in=128b} snapc 0={} ondisk+write+known_if_redirected e52) v8) same_interval_since: 55
...
DEBUG 2021-05-26 20:25:21,813 [shard 0] osd - client_request(id=4, detail=osd_op(client.4453.0:5 12.6 12:602f83fe:::foo:head {write 0~128 in=128b} snapc 0={} ondisk+write+known_if_redirected e52) v8) same_interval_since: 55
ceph-osd: /home/jenkins-build/build/workspace/ceph-dev-new-build/ARCH/x86_64/AVAILABLE_ARCH/x86_64/AVAILABLE_DIST/centos8/DIST/centos8/MACHINE_SIZE/gigantic/release/17.0.0-4622-gaa1dc559/rpm/el8/BUILD/ceph-17.0.0-4622-gaa1dc559/src/crimson/osd/osd_operation_sequencer.h:52: seastar::futurize_t<Result> crimson::osd::OpSequencer::start_op(HandleT&, uint64_t, uint64_t, FuncT&&) [with HandleT = crimson::PipelineHandle; FuncT = crimson::interruptible::interruptor<InterruptCond>::wrap_function(Func&&) [with Func = crimson::osd::ClientRequest::start()::<lambda()> mutable::<lambda(Ref<crimson::osd::PG>)> mutable::<lambda()> mutable::<lambda()>; InterruptCond = crimson::osd::IOInterruptCondition]::<lambda()>; Result = crimson::interruptible::interruptible_future_detail<crimson::osd::IOInterruptCondition, seastar::future<> >; seastar::futurize_t<Result> = crimson::interruptible::interruptible_future_detail<crimson::osd::IOInterruptCondition, seastar::future<> >; uint64_t = long unsigned int]: Assertion `prev_op > last_unblocked' failed.
Aborting on shard 0.
Backtrace:
 0# 0x000055F440239C1F in ceph-osd
 1# FatalSignal::signaled(int, siginfo_t const*) in ceph-osd
 2# FatalSignal::install_oneshot_signal_handler<6>()::{lambda(int, siginfo_t*, void*)#1}::_FUN(int, siginfo_t*, void*) in ceph-osd
 3# 0x00007F4788336B20 in /lib64/libpthread.so.0
 4# gsignal in /lib64/libc.so.6
 5# abort in /lib64/libc.so.6
 6# 0x00007F4786931B09 in /lib64/libc.so.6
 7# 0x00007F478693FDE6 in /lib64/libc.so.6
 8# 0x000055F43BA3DD17 in ceph-osd
 9# 0x000055F43BA419A8 in ceph-osd
10# seastar::continuation<seastar::internal::promise_base_with_type<seastar::bool_class<seastar::stop_iteration_tag> >, seastar::noncopyable_function<seastar::future<seastar::bool_class<seastar::stop_iteration_tag> > (boost::intrusive_ptr<crimson::osd::PG>&&)>, seastar::future<boost::intrusive_ptr<crimson::osd::PG> >::then_impl_nrvo<seastar::noncopyable_function<seastar::future<seastar::bool_class<seastar::stop_iteration_tag> > (boost::intrusive_ptr<crimson::osd::PG>&&)>, seastar::future<seastar::bool_class<seastar::stop_iteration_tag> > >(seastar::noncopyable_function<seastar::future<seastar::bool_class<seastar::stop_iteration_tag> > (boost::intrusive_ptr<crimson::osd::PG>&&)>&&)::{lambda(seastar::internal::promise_base_with_type<seastar::bool_class<seastar::stop_iteration_tag> >&&, seastar::noncopyable_function<seastar::future<seastar::bool_class<seastar::stop_iteration_tag> > (boost::intrusive_ptr<crimson::osd::PG>&&)>&, seastar::future_state<boost::intrusive_ptr<crimson::osd::PG> >&&)#1}, boost::intrusive_ptr<crimson::osd::PG> >::run_and_dispose() in ceph-osd
11# 0x000055F445C5C70F in ceph-osd
```

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>