Steps To Reproduce

1. Open Connection screen and switch to Fill in connection fields individually
2. Try to enter '-', '+', 'e' characters into the Port field

Expected Results

Only digits 0..9 should be allowed for entering. Port value are in range 1..65535.

Actual Results

'-', '+', 'e' characters remains entered in the Port field. When try to connect with such Port value the default 27017 port is used.

Additional Notes

Probably issue is introduced within the fix of COMPASS-4607, since it's not possible to enter or paste '-', '+', 'e'  characters in 1.25.0 version.

It's also possible to enter only 0 into the Port field while up\down arrows inside the Port filed doesn't allow to enter value less than 1. When trying to connect with 0 port the default 27017 port value is used.