Separately bought upgrade doesn't auto-add details.

Telegram/SourceFiles/api/api_premium.cpp

@@ -992,6 +992,7 @@ std::optional<Data::SavedStarGift> FromTL(
 			? peerFromMTP(*data.vfrom_id())
 			: PeerId()),
 		.date = data.vdate().v,
+		.upgradeSeparate = data.is_upgrade_separate(),
 		.upgradable = data.is_can_upgrade(),
 		.anonymous = data.is_name_hidden(),
 		.pinned = data.is_pinned_to_top() && hasUnique,

Telegram/SourceFiles/data/data_credits.h

@@ -106,6 +106,7 @@ struct CreditsHistoryEntry final {
 	bool giftTransferred : 1 = false;
 	bool giftRefunded : 1 = false;
 	bool giftUpgraded : 1 = false;
+	bool giftUpgradeSeparate : 1 = false;
 	bool giftResale : 1 = false;
 	bool giftResaleForceTon : 1 = false;
 	bool giftPinned : 1 = false;

Telegram/SourceFiles/data/data_media_types.h

@@ -163,6 +163,7 @@ struct GiftCode {
 	GiftType type = GiftType::Premium;
 	bool viaGiveaway : 1 = false;
 	bool transferred : 1 = false;
+	bool upgradeSeparate : 1 = false;
 	bool upgradable : 1 = false;
 	bool unclaimed : 1 = false;
 	bool anonymous : 1 = false;

Telegram/SourceFiles/data/data_star_gift.h

@@ -178,6 +178,7 @@ struct SavedStarGift {
 	QString giftPrepayUpgradeHash;
 	PeerId fromId = 0;
 	TimeId date = 0;
+	bool upgradeSeparate = false;
 	bool upgradable = false;
 	bool anonymous = false;
 	bool pinned = false;

Telegram/SourceFiles/history/history_item.cpp

@@ -5869,13 +5869,14 @@ void HistoryItem::setServiceMessageByAction(const MTPmessageAction &action) {
 			const MTPDmessageActionStarGift &action) {
 		auto result = PreparedServiceText();
 		const auto upgradeGifted = action.is_prepaid_upgrade();
+		const auto upgradeSeparate = action.is_upgrade_separate();
 		const auto isSelf = _from->isSelf();
 		const auto peer = isSelf ? _history->peer : _from;
 		const auto stars = action.vgift().match([&](
 				const MTPDstarGift &data) {
 			return upgradeGifted
 				? uint64(action.vupgrade_stars().value_or_empty())
-				: action.is_upgrade_separate()
+				: upgradeSeparate
 				? uint64(data.vstars().v)
 				: (uint64(data.vstars().v)
 					+ uint64(action.vupgrade_stars().value_or_empty()));
@@ -6503,6 +6504,7 @@ void HistoryItem::applyAction(const MTPMessageAction &action) {
 			.starsUpgradedBySender = int(
 				data.vupgrade_stars().value_or_empty()),
 			.type = Data::GiftType::StarGift,
+			.upgradeSeparate = data.is_upgrade_separate(),
 			.upgradable = data.is_can_upgrade(),
 			.anonymous = data.is_name_hidden(),
 			.converted = data.is_converted(),

Telegram/SourceFiles/settings/settings_credits_graphics.cpp

@@ -1874,7 +1874,9 @@ void GenericCreditsEntryBox(
 				&& e.hasGiftComment),
 			.canAddMyComment = (giftToSelf && e.hasGiftComment),
 			.addDetailsDefault = (giftToSelf
-				|| (e.starsUpgradedBySender && !e.anonymous)),
+				|| (e.starsUpgradedBySender
+					&& !e.giftUpgradeSeparate
+					&& !e.anonymous)),
 		});
 	};
 
@@ -2553,6 +2555,7 @@ Data::CreditsHistoryEntry SavedStarGiftEntry(
 		.converted = false,
 		.anonymous = data.anonymous,
 		.stargift = true,
+		.giftUpgradeSeparate = data.upgradeSeparate,
 		.giftPinned = data.pinned,
 		.savedToProfile = !data.hidden,
 		.fromGiftsList = true,
@@ -2657,6 +2660,7 @@ void ShowStarGiftViewBox(
 		.stargift = true,
 		.giftTransferred = data.transferred,
 		.giftRefunded = data.refunded,
+		.giftUpgradeSeparate = data.upgradeSeparate,
 		.savedToProfile = data.saved,
 		.canUpgradeGift = data.upgradable,
 		.hasGiftComment = !data.message.empty(),