From 3b911f19f68334597bdb8c9586df2278c1a3f4e5 Mon Sep 17 00:00:00 2001
From: John Preston <johnprestonmail@gmail.com>
Date: Fri, 26 Oct 2018 09:35:57 +0400
Subject: [PATCH] Fix collage/slideshow extracting in GCC.

It was depending on argument evaluation order before that fix.
---
 Telegram/SourceFiles/data/data_web_page.cpp | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/Telegram/SourceFiles/data/data_web_page.cpp b/Telegram/SourceFiles/data/data_web_page.cpp
index 2ecbdfc515..bffceffcfa 100644
--- a/Telegram/SourceFiles/data/data_web_page.cpp
+++ b/Telegram/SourceFiles/data/data_web_page.cpp
@@ -89,6 +89,14 @@ WebPageCollage ExtractCollage(const MTPDwebPage &data) {
 	if (!data.has_cached_page()) {
 		return {};
 	}
+	const auto parseMedia = [&] {
+		if (data.has_photo()) {
+			Auth().data().photo(data.vphoto);
+		}
+		if (data.has_document()) {
+			Auth().data().document(data.vdocument);
+		}
+	};
 	return data.vcached_page.match([&](const auto &page) {
 		for (const auto &block : page.vblocks.v) {
 			switch (block.type()) {
@@ -100,11 +108,13 @@ WebPageCollage ExtractCollage(const MTPDwebPage &data) {
 			case mtpc_pageBlockAudio:
 				return WebPageCollage();
 			case mtpc_pageBlockSlideshow:
+				parseMedia();
 				return ExtractCollage(
 					block.c_pageBlockSlideshow().vitems.v,
 					page.vphotos.v,
 					page.vdocuments.v);
 			case mtpc_pageBlockCollage:
+				parseMedia();
 				return ExtractCollage(
 					block.c_pageBlockCollage().vitems.v,
 					page.vphotos.v,