### Godot version

Godot 4.1.dev4

### System information

Ubuntu 22.04.2 LTS 22.04 - Vulkan (Forward+) - integrated Intel(R) HD Graphics 4400 (HSW GT2) () - Intel(R) Core(TM) i7-4600U CPU @ 2.10GHz (4 Threads)

### Issue description

![image](https://github.com/godotengine/godot/assets/85438892/a61e8333-d9f0-40ec-a508-d301850d05e9)

Let's suppose I clicked this item, then scrolled around in my script, and I then wanted to check out the warning's line again. It wouldn't work without selecting another item first.

Should be an easy fix by setting `allow_reselect = true` in the underlying tree.

### Steps to reproduce

N/A

### Minimal reproduction project

N/A
case ACTION_OPEN_SOURCE: {
			TreeItem *ti = error_tree->get_selected();
			while (ti->get_parent() != error_tree->get_root()) {
				ti = ti->get_parent();
			}
			
			
			TreeItem *ci = ti->get_first_child();
			const String cpp_source = "<" + TTR("C++ Source") + ">";
			while (ci) {
				if (ci->get_text(0) == cpp_source) {
					break;
				}
				ci = ci->get_next();
			}
			if (!ci) {
				WARN_PRINT_ED("No C++ source reference is available for this error.");
				return;
			}
			
			const Vector<String> file_line_number = ci->get_text(1).split("@")[0].strip_edges().split(":");
			ERR_FAIL_COND_MSG(file_line_number.size() < 2, "Incorrect C++ source stack trace file:line format (please report).");
			const String file = file_line_number[0];
			const int line_number = file_line_number[1].to_int();
			
			
			String git_ref = String(VERSION_HASH).is_empty() ? String(VERSION_NUMBER) + "-stable" : String(VERSION_HASH);
			OS::get_singleton()->shell_open(vformat("https://github.com/godotengine/godot/blob/%s/%s#L%d",
					git_ref, file, line_number));
		} break;