Found a bug with \leqq

[ch2capg]

Dear maintainer team,

I am using the breqn package for my thesis and I am happy to use it, because it saves me work. However I found a bug and want to report it. Please consider the following MWE

 \documentclass{article}
 \usepackage{amsmath}
 \usepackage{amssymb}
 \usepackage{flexisym}
 \usepackage{breqn}
 \begin{document}
 \begin{dmath*}
   x \leqq a + b  + c + d + e + f + g + h + i + j + k + l + m
   \leqq n + o + p + q + r  + s + u
   \leqq  v + w + x + y + z
 \end{dmath*}
 \end{document}

On my machine breqn treats \leqq like an ordinary math symbol, say like +. If I replace \leqq with \leq everything looks perfect. Is this easy to fix?

Here is the output of \listfiles

 *File List*
  article.cls    2014/09/29 v1.4h Standard LaTeX document class
   size10.clo    2014/09/29 v1.4h Standard LaTeX file (size option)
  amsmath.sty    2013/01/14 v2.14 AMS math features
  amstext.sty    2000/06/29 v2.01
   amsgen.sty    1999/11/30 v2.0
   amsbsy.sty    1999/11/29 v1.2d
   amsopn.sty    1999/12/14 v2.01 operator names
  amssymb.sty    2013/01/14 v3.01 AMS font symbols
 amsfonts.sty    2013/01/14 v3.01 Basic AMSFonts support
 flexisym.sty    2013/03/16 v0.97c Make math characters macros
    expl3.sty    2015/03/01 v5547 L3 programming layer (loader)
 expl3-code.tex    2015/03/01 v5547 L3 programming layer
 l3unicode-data.def    2015/03/01 v5544 L3 Unicode data
 l3pdfmode.def    2015/03/01 v5544 L3 Experimental driver: PDF mode
   cmbase.sym    2007/12/19 v0.92
 mathstyle.sty    2014/06/10 v0.90a Tracking mathstyle implicitly
    breqn.sty    2012/05/10 v0.98b Breaking equations
   keyval.sty    2014/10/28 v1.15 key=value parser (DPC)
     calc.sty    2014/10/28 v4.3 Infix arithmetic (KKT,FJ)
     umsa.fd    2013/01/14 v3.01 AMS symbols A
     umsb.fd    2013/01/14 v3.01 AMS symbols B
  ***********

Best regards, ch2capg

P.S.: I have created this account to report this bug. Was there any other way to submit bugs like sending an E-Mail?