title: Can there be 2 different UTF-8 encodings for the same character?
body: <p>I'm writing an application that needs to transcode its input from UTF-8 to ISO-8859-1 (Latin 1).</p>
  
  <p>All works fine, except I sometimes get strange encodings for some umlaut characters. For example the Latin 1 E with 2 dots (0xEB) usually comes as UTF-8 0xC3 0xAB, but sometimes also as 0xC3 0x83 0xC2 0xAB.</p>
  
  <p>This happened a number of times from different sources and noting that first and last characters match what I expect, could there be an encoding rule that my library doesn't know about ?</p>