fix missing deletion initialization

Yury Malkov · Yury Malkov · commit 5ad84a1bf2c7 · 2019-11-05T15:44:11.000+03:00
diff --git a/hnswlib/hnswalg.h b/hnswlib/hnswalg.h
@@ -797,6 +797,7 @@ namespace hnswlib {
                 auto search = label_lookup_.find(label);
                 if (search != label_lookup_.end()) {
                     std::unique_lock <std::mutex> lock_el(link_list_locks_[search->second]);
+                    has_deletions_ = true;
                     markDeletedInternal(search->second);
                 }
                 label_lookup_[label] = cur_c;

Original file line number	Diff line number	Diff line change
`@@ -797,6 +797,7 @@ namespace hnswlib {`
`797`	`797`	`auto search = label_lookup_.find(label);`
`798`	`798`	`if (search != label_lookup_.end()) {`
`799`	`799`	`std::unique_lock <std::mutex> lock_el(link_list_locks_[search->second]);`
	`800`	`+ has_deletions_ = true;`
`800`	`801`	`markDeletedInternal(search->second);`
`801`	`802`	`}`
`802`	`803`	`label_lookup_[label] = cur_c;`