Bug #78550 Append Data - Warnings about incompatible data types do not appear anymore

Description:
In the Append Data dialog, whenever a column from the source (upper) grid is drag and dropped into another column on the target (lower) grid, a check for data types compatibility was run in previous versions, but it is not happening on the current 1.3.4 version.

For example when attempting to map a source column of data type varchar to a target column of data type integer, a warning should appear stating that the data types are incompatible.

How to repeat:
1. Open MySQL for Excel
2. Open a connection to a MySQL server, select a schema and a table
3. Import the contents of any table that contains columns of different data types.
4. Select 1 or more rows of the imported data
5. Click Append Excel Data to Table
6. Select Manual from the mapping method combo
7. Drag a source column of one data type to a target column of a different data type (for example source = varchar, target = integer)
8. NOTE a warning stating the data types are incompatible should have appeared but there is none. Also the cells of the source column should have been colored red (indicating there is a warning associated to that column).

Fixed as of the upcoming MySQL for Excel 1.3.5 release, and here's the changelog entry:

Attempting to save data to a column where the data can not be written
(incompatible data type) now generates an error.

Thank you for the bug report.