title: intersection of two geopandas GeoSeries gives warning "The indices of the two GeoSeries are different." and few matches
body: <p>I am using geopandas for finding intersections between points and polygons.
  When I use the following:</p>
  <pre><code>intersection_mb = buffers_df.intersection(rest_VIC)
  </code></pre>
  <p>I get this output with a warning basically saying there are no intersections:</p>
  <pre><code>0         None
  112780    None
  112781    None
  112782    None
  112784    None
        ... 
  201314    None
  201323    None
  201403    None
  201404    None
  201444    None
  Length: 3960, dtype: geometry
  </code></pre>
  <p>Warning message:</p>
  <pre><code> C:\Users\Name\Anaconda3\lib\site-packages\geopandas\base.py:31: UserWarning: The indices of the two GeoSeries are different.
   warn(&quot;The indices of the two GeoSeries are different.&quot;)
  </code></pre>
  <p>I looked for any suggestions and found that I could solve by setting crs for both geoseries for which the intersection is to be performed on, but it did not work.</p>
  <pre><code>rest_VIC = rest_VIC.set_crs(epsg=4326, allow_override=True)
  buffers_df = buffers_df.set_crs(epsg=4326, allow_override=True)
  </code></pre>
  <p>Any suggestions will be helpful. Thanks.</p>