Merge remote-tracking branch 'origin/pr/304'

* origin/pr/304:
  fix #6562. qvm-open-in-vm: wait EOF when handling URL

qubes-rpc/qvm-open-in-vm

@@ -48,7 +48,7 @@ fi
 
 case "$filename" in
 	*://*)
-        exec /usr/lib/qubes/qrexec-client-vm "$target" qubes.OpenURL /bin/echo "$filename"
+        exec /usr/lib/qubes/qrexec-client-vm "$target" qubes.OpenURL /bin/sh -c 'printf "%s\n" "$0"; cat >/dev/null' "$filename"
         ;;
     *)
         exec /usr/lib/qubes/qrexec-client-vm "$target" qubes.OpenInVM "/usr/lib/qubes/qopen-in-vm" $qopen_opts "$filename"