fix lazy postings merge bug (#6415)

Signed-off-by: Ben Ye <[email protected]>

go.mod

@@ -53,7 +53,7 @@ require (
 	github.com/stretchr/testify v1.10.0
 	github.com/thanos-io/objstore v0.0.0-20241111205755-d1dd89d41f97
 	github.com/thanos-io/promql-engine v0.0.0-20241203103240-2f49f80c7c68
-	github.com/thanos-io/thanos v0.37.2-0.20241210071311-51c7dcd8c278
+	github.com/thanos-io/thanos v0.37.2-0.20241210234302-0ea6bac096ce
 	github.com/uber/jaeger-client-go v2.30.0+incompatible
 	github.com/weaveworks/common v0.0.0-20230728070032-dd9e68f319d5
 	go.etcd.io/etcd/api/v3 v3.5.17

go.sum

@@ -1665,8 +1665,8 @@ github.com/thanos-io/objstore v0.0.0-20241111205755-d1dd89d41f97 h1:VjG0mwhN1Dkn
 github.com/thanos-io/objstore v0.0.0-20241111205755-d1dd89d41f97/go.mod h1:vyzFrBXgP+fGNG2FopEGWOO/zrIuoy7zt3LpLeezRsw=
 github.com/thanos-io/promql-engine v0.0.0-20241203103240-2f49f80c7c68 h1:cChM/FbpXeYmrSmXO1/MmmSlONviLVxWAWCB0/g4JrY=
 github.com/thanos-io/promql-engine v0.0.0-20241203103240-2f49f80c7c68/go.mod h1:wx0JlRZtsB2S10JYUgeg5GqLfMxw31SzArP+28yyE00=
-github.com/thanos-io/thanos v0.37.2-0.20241210071311-51c7dcd8c278 h1:5MYGbe7gYtPE/DYReOxrevi++3+mgwz5ud9ji/lwXrg=
-github.com/thanos-io/thanos v0.37.2-0.20241210071311-51c7dcd8c278/go.mod h1:5Ni7Uc1Bc8UCGOYmZ/2f/LVvDkZKNDdqDJZqjDFG+rI=
+github.com/thanos-io/thanos v0.37.2-0.20241210234302-0ea6bac096ce h1:77bIiukjCF+GRZFjwJOsLIwWri7BO8LTwhchkPI7l5U=
+github.com/thanos-io/thanos v0.37.2-0.20241210234302-0ea6bac096ce/go.mod h1:5Ni7Uc1Bc8UCGOYmZ/2f/LVvDkZKNDdqDJZqjDFG+rI=
 github.com/tjhop/slog-gokit v0.1.2 h1:pmQI4SvU9h4gA0vIQsdhJQSqQg4mOmsPykG2/PM3j1I=
 github.com/tjhop/slog-gokit v0.1.2/go.mod h1:8fhlcp8C8ELbg3GCyKv06tgt4B5sDq2P1r2DQAu1HuM=
 github.com/tv42/httpunix v0.0.0-20150427012821-b75d8614f926/go.mod h1:9ESjWnEqriFuLhtthL60Sar/7RFoluCcXsuvEwTV5KM=