Reset last metadata on new track by default #11627

Job	Run time
build_details	1s
build_js	2m 25s
build_opam (4.14.x)	9m 2s
build_opam (5.2.x)	5m 11s
build_no_depopts	5m 59s
lezer_parse	52s
build_posix (debian_trixie, amd64)	13m 38s
build_win32 (x64)	18m 32s
build_posix (debian_bookworm, amd64)	14m 43s
run_tests (@citest)	12m 59s
build_posix (ubuntu_oracular, amd64)	15m 59s
tree_sitter_parse	48s
run_tests (@doctest)	7m 44s
update_doc	0s
build_posix (ubuntu_noble, amd64)	13m 59s
run_tests (@mediatest)	12m 16s
build_posix (alpine, amd64)	12m 6s
fetch_s3_artifacts	22s
build_docker_alpine (amd64)	49s
build_docker (amd64)	2m 47s
build_docker_alpine_minimal (amd64)	51s
build_docker_minimal (amd64)	2m 38s
update_release	0s
build_docker_release-minimal	0s
build_docker_release	0s
	2h 33m 41s

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