title: Git merge commit missing
body: <p>I'm seeking for an explanation of following:  </p>
  
  <p>My git repository is on stash.  </p>
  
  <p>I have 2 branches: master, develop.<br>
  Today I wanted to release a new version, for this reason I created <strong>release-1.0</strong> branch from a <strong>develop branch</strong>.  </p>
  
  <p>Then I did:  </p>
  
  <p>git checkout release-1.0<br>
  updated the poms to release version<br>
  git commit -m "Prepare poms for next release"<br>
  git push<br>
  git merge master //to be sure if everything is in sync  </p>
  
  <p>Next using stash i created a pull request. My mate accepted it and everything went to master and the commit appeared:<br>
  <strong>9c08cd5fc435 Merge pull request #1 in XXX from release-1.0 to master</strong>   </p>
  
  <p>The last thing to do was to update the develop branch with those changes
  so I did:  </p>
  
  <p>git checkout develop<br>
  git merge master<br>
  git status  </p>
  
  <p>//here I saw all the poms that have changed  </p>
  
  <p>git commit -m "Merge back release changes to develop"<br>
  git push  </p>
  
  <p>And here the magic happened - <strong>git did not record this last commit</strong>.  </p>
  
  <p>When I list the commits for <strong>develop</strong> branch I can see that git somehow embedded the last commit from the <strong>release branch</strong> i.e. <strong>"Prepare poms for next release"</strong>, but there is nothing like <strong>"Merge back release changes to develop"</strong>  </p>
  
  <p>Can anyone explain me this strange situation?  </p>