crimson/osd: fix assertion failure in InternalClientRequest.

crimson/osd: fix assertion failure in InternalClientRequest.

```
DEBUG 2021-12-01 07:55:10,541 [shard 0] osd - internal_client_request(id=1, detail=): in repeat
TRACE 2021-12-01 07:55:10,541 [shard 0] osd - with_interruption_cond: interrupt_cond: 0x0
TRACE 2021-12-01 07:55:10,541 [shard 0] osd - call_with_interruption_impl: may_interrupt: false, local interrupt_condintion: 0x603000b5d270, global interrupt_cond: 0x0,N7crimson3osd20IOInterruptConditionE
TRACE 2021-12-01 07:55:10,541 [shard 0] osd - set: interrupt_cond: 0x603000b5d270, ref_count: 1
TRACE 2021-12-01 07:55:10,541 [shard 0] osd - call_with_interruption_impl clearing interrupt_cond: 0x603000b5d270,N7crimson3osd20IOInterruptConditionE
TRACE 2021-12-01 07:55:10,541 [shard 0] osd - call_with_interruption_impl: may_interrupt: false, local interrupt_condintion: 0x603000b5d270, global interrupt_cond: 0x0,N7crimson3osd20IOInterruptConditionE
TRACE 2021-12-01 07:55:10,541 [shard 0] osd - set: interrupt_cond: 0x603000b5d270, ref_count: 1
TRACE 2021-12-01 07:55:10,541 [shard 0] osd - call_with_interruption_impl clearing interrupt_cond: 0x603000b5d270,N7crimson3osd20IOInterruptConditionE
TRACE 2021-12-01 07:55:10,541 [shard 0] osd - call_with_interruption_impl: may_interrupt: false, local interrupt_condintion: 0x603000b5d270, global interrupt_cond: 0x0,N7crimson3osd20IOInterruptConditionE
TRACE 2021-12-01 07:55:10,541 [shard 0] osd - set: interrupt_cond: 0x603000b5d270, ref_count: 1
TRACE 2021-12-01 07:55:10,541 [shard 0] osd - call_with_interruption_impl clearing interrupt_cond: 0x603000b5d270,N7crimson3osd20IOInterruptConditionE
TRACE 2021-12-01 07:55:10,542 [shard 0] osd - call_with_interruption_impl: may_interrupt: false, local interrupt_condintion: 0x603000b5d270, global interrupt_cond: 0x0,N7crimson3osd20IOInterruptConditionE
TRACE 2021-12-01 07:55:10,542 [shard 0] osd - set: interrupt_cond: 0x603000b5d270, ref_count: 1
DEBUG 2021-12-01 07:55:10,542 [shard 0] osd - do_recover_missing check for recovery, MIN
ERROR 2021-12-01 07:55:10,542 [shard 0] none - /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/17.0.0-8902-g52fd47fe/rpm/el8/BUILD/ceph-17.0.0-8902-g52fd47fe/src/crimson/osd/pg.cc:1195 : In function 'bool crimson::osd::PG::is_degraded_or_backfilling_object(const hobject_t&) const', ceph_assert(%s)
!get_acting_recovery_backfill().empty()
```

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