ShaderProgram.SetUniform1 does not work for int uniforms

[VE3NEA]

This statement does not change the integer uniform:

shaderProgram.SetUniform1(gl, "my_texture", 1);

This one works orrectly:

 gl.Uniform1(shaderProgram.GetUniformLocation(gl, "my_texture"), 1);

The problem with the first statement is that the third parameter of SetUniform1 is declared as float, so if an int value is passed,
it is typecasted to float before the call to gl.Uniform1.

[brisingre]

This got me as well! Took us a week to figure it out before my friend found this ticket...