Shell processes left in the background about j4-dmenu-desktop HOT 2 OPEN

--- a/src/Main.hh
+++ b/src/Main.hh
@@ -260,7 +260,9 @@ private:
         }
 
         this->dmenu->display();
-        std::string command = get_command();
+        std::string command;
+        bool iscustom;
+        std::tie(command, iscustom) = get_command();
         if (this->wrapper.length())
             command = this->wrapper+" \""+command+"\"";
         delete this->dmenu;
@@ -273,6 +275,8 @@ private:
             static const char *shell = 0;
             if((shell = getenv("SHELL")) == 0)
                 shell = "/bin/sh";
+            if (!iscustom)
+                command = "exec " + command;
 
             fprintf(stderr, "%s -c '%s'\n", shell, command.c_str());
 
@@ -317,7 +321,7 @@ private:
         return 0;
     }
 
-    std::string get_command() {
+    std::pair<std::string, bool> get_command() {
         std::string choice;
         std::string args;
         Application *app;
@@ -326,13 +330,13 @@ private:
 
         choice = dmenu->read_choice(); // Blocks
         if(choice.empty())
-            return "";
+            return std::make_pair("", false);
 
         fprintf(stderr, "User input is: %s %s\n", choice.c_str(), args.c_str());
 
         std::tie(app, args) = apps.search(choice, exclude_generic);
         if (!app) {
-            return args;
+            return std::make_pair(args, true);
         }
 
         if(usage_log) {
@@ -346,7 +350,7 @@ private:
         }
 
         ApplicationRunner app_runner(terminal, *app, args);
-        return app_runner.command();
+        return std::make_pair(app_runner.command(), false);
     }
 
 private: