efm: bug fix in source icons finding logic on dnd

Summary:
There were a few crash cases during drag and drop.
- move file in Desktop using efm,
- move file in same directory using differnt efm

The root cause is icon finding logic. efm finds icons based on URI string.
But, the found icon could be different with selected one since there could be multiple efm in same directory.

Therefore, this patch filter out icon which is not selected icon.

Fixes T1364

Test Plan:
case 1. open efm -> goto desktop -> move file from ~/Desktop to ~/Desktop/folder
case 2. open two efm -> goto same directory in two efm -> move file to {currentdirectory}/folder in any efm

Reviewers: raster, zmike

Subscribers: cedric, seoz

Maniphest Tasks: T1364

Differential Revision: https://phab.enlightenment.org/D1331

src/bin/e_fm.c

@@ -4498,15 +4498,17 @@ _e_fm2_uri_icon_list_get(Eina_List *uri)
         Eina_List *fms;
         Evas_Object *fm;
         E_Fm2_Icon *ic;
-        const char *file;
 
-        ic = NULL;
         fms = _e_fm2_file_fm2_find(path);
         if (!fms) continue;
-        fm = eina_list_data_get(fms);
-        eina_list_free(fms);
-        file = ecore_file_file_get(path);
-        ic = _e_fm2_icon_find(fm, file);
+        ic = NULL;
+        EINA_LIST_FREE(fms, fm)
+          {
+             ic = _e_fm2_icon_find(fm, ecore_file_file_get(path));
+             if (!ic) continue;
+             if (eina_list_data_find(ic->sd->selected_icons, ic)) break;
+             ic = NULL;
+          }
         icons = eina_list_append(icons, ic);
      }
    return icons;