Fix logic issues with BBR impl

Author: nekohasekai

go.mod

@@ -34,7 +34,7 @@ require (
 	github.com/sagernet/quic-go v0.59.0-sing-box-mod.2
 	github.com/sagernet/sing v0.8.0-beta.10
 	github.com/sagernet/sing-mux v0.3.3
-	github.com/sagernet/sing-quic v0.6.0-beta.10
+	github.com/sagernet/sing-quic v0.6.0-beta.11
 	github.com/sagernet/sing-shadowsocks v0.2.8
 	github.com/sagernet/sing-shadowsocks2 v0.2.1
 	github.com/sagernet/sing-shadowtls v0.2.1-0.20250503051639-fcd445d33c11

go.sum

@@ -214,8 +214,8 @@ github.com/sagernet/sing v0.8.0-beta.10 h1:xLTfDWM3CfLRQC7BZSR3LMvc6hNolYCPBEdSD
 github.com/sagernet/sing v0.8.0-beta.10/go.mod h1:ARkL0gM13/Iv5VCZmci/NuoOlePoIsW0m7BWfln/Hak=
 github.com/sagernet/sing-mux v0.3.3 h1:YFgt9plMWzH994BMZLmyKL37PdIVaIilwP0Jg+EcLfw=
 github.com/sagernet/sing-mux v0.3.3/go.mod h1:pht8iFY4c9Xltj7rhVd208npkNaeCxzyXCgulDPLUDA=
-github.com/sagernet/sing-quic v0.6.0-beta.10 h1:KvuRBJWT199ClTHtT2b/46vH7gGWHPJMDn+GumTFGQI=
-github.com/sagernet/sing-quic v0.6.0-beta.10/go.mod h1:K5bWvITOm4vE10fwLfrWpw27bCoVJ+tfQ79tOWg+Ko8=
+github.com/sagernet/sing-quic v0.6.0-beta.11 h1:eUusxITKKRedhWC2ScUYFUvD96h/QfbKLaS3N6/7in4=
+github.com/sagernet/sing-quic v0.6.0-beta.11/go.mod h1:K5bWvITOm4vE10fwLfrWpw27bCoVJ+tfQ79tOWg+Ko8=
 github.com/sagernet/sing-shadowsocks v0.2.8 h1:PURj5PRoAkqeHh2ZW205RWzN9E9RtKCVCzByXruQWfE=
 github.com/sagernet/sing-shadowsocks v0.2.8/go.mod h1:lo7TWEMDcN5/h5B8S0ew+r78ZODn6SwVaFhvB6H+PTI=
 github.com/sagernet/sing-shadowsocks2 v0.2.1 h1:dWV9OXCeFPuYGHb6IRqlSptVnSzOelnqqs2gQ2/Qioo=