stream: keep overlapping broadcast reads pending #7764

Job	Run time
Build slim tarball	1m 8s
aarch64-linux: Cache V8 build	23s
x86_64-linux: with shared libraries	27m 47s
x86_64-darwin: with shared libraries	42m 8s
aarch64-darwin: with shared libraries	28m 55s
aarch64-linux: with shared openssl-4.0.0	23m 47s
aarch64-linux: with shared openssl-3.5.6	24m 12s
aarch64-linux: with shared openssl-1.1.1w	23m 16s
aarch64-linux: with shared openssl-3.6.2	24m 15s
aarch64-linux: with shared openssl-3.0.20	23m 50s
aarch64-linux: with shared boringssl-0.20260526.0	23m 43s
Build slim tarball	1m 8s
x86_64-linux: with shared libraries	24m 50s
aarch64-linux: Cache V8 build	23s
x86_64-darwin: with shared libraries	42m 8s
aarch64-linux: with shared boringssl-0.20260526.0	23m 43s
aarch64-linux: with shared openssl-1.1.1w	23m 16s
aarch64-darwin: with shared libraries	28m 55s
aarch64-linux: with shared openssl-4.0.0	23m 47s
aarch64-linux: with shared openssl-3.0.20	23m 50s
aarch64-linux: with shared openssl-3.6.2	24m 15s
aarch64-linux: with shared openssl-3.5.6	24m 12s
	8h 3m 51s

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