Fix parsing issues with command-line passthrough

Author: ConnorForan

self_updater/self_updater.cpp

@@ -663,7 +663,7 @@ std::string Updater::BuildCleanCli(int argc, char** argv, bool addCheckSelfUpdat
 			i++;
 			continue;
 		}
-		cli << " " << argv[i];
+		cli << " \"" << argv[i] << "\"";
 	}
 	if (addCheckSelfUpdate) {
 		cli << " " << CheckSelfUpdateLauncherArg;

self_updater/utils.cpp

@@ -78,6 +78,8 @@ namespace Updater::Utils {
 				--* len;
 			} else if (*cur == '\\') {
 				escaped = !escaped;
+			} else {
+				escaped = false;
 			}
 
 			++cur;

src/app.cpp

@@ -290,7 +290,7 @@ void Launcher::App::RestartForSelfUpdate(const std::string& updateUrl, const std
 		<< " --url " << updateUrl
 		<< " --version " << updateVersion;
 	for (int i = 1; i < argc; ++i) {
-		cli << " " << argv[i];
+		cli << " \"" << argv[i] << "\"";
 	}
 
 	_mainFrame->Hide();