diff --git a/src/timeline2/TimelineModel.cpp b/src/timeline2/TimelineModel.cpp
index d3d6f5c7..54f03b56 100644
--- a/src/timeline2/TimelineModel.cpp
+++ b/src/timeline2/TimelineModel.cpp
@@ -324,10 +324,16 @@ TimelineModel::addEvents(const mtx::responses::Timeline &timeline)
QString id =
boost::apply_visitor([](const auto &e) -> QString { return eventId(e); }, e);
+ if (this->events.contains(id))
+ continue;
+
this->events.insert(id, e);
ids.push_back(id);
}
+ if (ids.empty)
+ return;
+
beginInsertRows(QModelIndex(),
static_cast<int>(this->eventOrder.size()),
static_cast<int>(this->eventOrder.size() + ids.size() - 1));
@@ -372,13 +378,18 @@ TimelineModel::addBackwardsEvents(const mtx::responses::Messages &msgs)
QString id =
boost::apply_visitor([](const auto &e) -> QString { return eventId(e); }, e);
+ if (this->events.contains(id))
+ continue;
+
this->events.insert(id, e);
ids.push_back(id);
}
- beginInsertRows(QModelIndex(), 0, static_cast<int>(ids.size() - 1));
- this->eventOrder.insert(this->eventOrder.begin(), ids.rbegin(), ids.rend());
- endInsertRows();
+ if (!ids.empty()) {
+ beginInsertRows(QModelIndex(), 0, static_cast<int>(ids.size() - 1));
+ this->eventOrder.insert(this->eventOrder.begin(), ids.rbegin(), ids.rend());
+ endInsertRows();
+ }
prev_batch_token_ = QString::fromStdString(msgs.end);
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