Date Entered and Date Modified list view filters not working

[maclordaj]

Issue

I applied the current 7.14.3 update and have also tested on a new installation.
Since at least this update when we set a list search filter (either advanced or basic) using the Date Entered or Date Modified fields, the results won't be correct.
I've pinpointed the cause to a code change in the ./include/SearchForm/SearchForm2.php file related to this commit:
serhiisamko091184@a24b68d

If we comment that line again the filters work as expected.

Expected Behavior

When using a date entered or modified filter, the results should be filtered by that date. e.g. I use the calendar to choose yesterday's (or tomorrow's) date for the date created field, so it shouldn't show records created today.

Actual Behavior

Today's records are shown.

Possible Fix

Deleting the line from this commit fixes that issue, but indeed the underlying issue that the commit was trying to fix won't work again.
The commit doesn't explain why to fix one module this line is added without affecting other modules.
Although I believe it has more to do with the way the date is changed between choosing it in the calendar and how the data in the backend is processed.
I added a custom date field (without range) and it seems to work.
It remains unknown to me if this affects custom date filters with range enabled.
Filtering using the included expected closing date for the opportunity field seems to also work in a new install.

Steps to Reproduce

1. Use the studio to add the date filters to the filter views (basic and/or advanced) in the opportunities module. Save your changes.
2. Load the Opportunities list view.
3. Try to filter the list view by the “Date Entered”, or “Date Modified” field.

Context

Since I was able to reproduce using a new install and this is a default and very common field to use, I believe it might be a high priority bug. I have commented the line directly on the core file for now as a tentative workaround.

Your Environment

• SuiteCRM Version used: 7.14.3
• Browser name and version (e.g. Chrome Version 51.0.2704.63 (64-bit)): Safari
• Environment name and version (e.g. MySQL, PHP 7):
• Operating System and version (e.g Ubuntu 16.04): Debian