1237996 - Natively themed button changes height by 1px only after first click if it's styling was changed

Status: NEW

(Core :: Layout: Form Controls, defect)

Description

[arni2033]

Attachment: testcase 1 - Button changes height by 1px only after first click.htm

>>>   My Info:   Win7_64, Nightly 46, 32bit, ID 20160107030235
STR:
1. Open attached "testcase 1"
2. Wait 2 seconds
3. Click the button "Sample_button"
4. Click the button "Change Sample_button's styling"
5. Click the button "Sample_button"
6. (optional) Repeat Steps 4-5

Result:       
 After Steps 2 and 4 - "Sample_button" 's styling is changed by a script.
 After Steps 3 and 5 - "Sample_button" 's height is changed by 1px

Expectations (Either A or B): 
 A) "Sample_button" 's height should change immediately, after Steps 2 and 4
 B) "Sample_button" 's height shouldn't change at all