Avoid updating the same rows multiple times with simple_update_many_t… #300

Job	Run time
lint-crlf	4s
changes	2s
check-signoff	0s
check-lockfile	6s
lint-newsfile	0s
check-sampleconfig	3m 53s
lint-clippy	19s
lint	1m 50s
check-schema-delta	16s
lint-clippy-nightly	27s
Typechecking	3m 16s
lint-pydantic	2m 28s
lint-rustfmt	28s
linting-done	1s
calculate-test-jobs	8s
complement (monolith, SQLite)	17m 56s
cargo-bench	0s
cargo-test	0s
complement (monolith, Postgres)	11m 20s
portdb (3.8, 11)	3m 22s
complement (workers, Postgres)	18m 13s
trial-olddeps	9m 38s
portdb (3.11, 15)	4m 47s
trial-pypy	0s
trial (3.8, sqlite, all)	5m 58s
sytest (focal)	11m 34s
sytest (focal, postgres)	11m 14s
sytest (focal, multi-postgres, workers)	14m 8s
trial (3.9, sqlite, all)	5m 38s
sytest (focal, multi-postgres, workers, asyncio)	24m 4s
trial (3.10, sqlite, all)	9m 17s
sytest (focal, asyncio)	11m 6s
trial (3.11, sqlite, all)	4m 38s
sytest (focal, postgres, asyncio)	16m 29s
trial (3.12, sqlite, all)	3m 39s
sytest (testing, postgres)	11m 50s
trial (3.8, postgres, 11, all)	11m 5s
trial (3.12, postgres, 16, all)	17m 44s
trial (3.8, sqlite)	4m 34s
export-data	3m 53s
tests-done	2s
	4h 5m 27s

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