Fix bug when querying changesets by time-range.

Author: blackboxlogic

OsmSharp.IO.API.Tests/NonAuthTests.cs

@@ -155,6 +155,8 @@ public async Task TestQueryChangesets()
             Assert.IsTrue(changesets.Any());
             changesets = await client.QueryChangesets(null, node.UserId, null, DateTime.MinValue, null, false, false, null);
             Assert.IsTrue(changesets.Any());
+            changesets = await client.QueryChangesets(null, node.UserId, null, DateTime.MinValue, DateTime.UtcNow, false, false, null);
+            Assert.IsTrue(changesets.Any());
             changesets = await client.QueryChangesets(null, null, node.UserName, null, null, false, false, null);
             Assert.IsTrue(changesets.Any());
             changesets = await client.QueryChangesets(null, null, null, null, null, false, false, new long[] { 151176, 151177 });

src/NonAuthClient.cs

@@ -491,7 +491,7 @@ public async Task<Changeset[]> QueryChangesets(Bounds bounds, long? userId, stri
             if (userId.HasValue) query["user"] = userId.ToString();
             if (userName != null) query["display_name"] = userName;
             if (minClosedDate.HasValue) query["time"] = FormatNoteDate(minClosedDate.Value);
-            if (maxOpenedDate.HasValue) query.Add("time", FormatNoteDate(maxOpenedDate.Value));
+            if (maxOpenedDate.HasValue) query["time"] += "," + FormatNoteDate(maxOpenedDate.Value);
             if (openOnly) query["open"] = "true";
             if (closedOnly) query["closed"] = "true";
             if (ids != null) query["changesets"] = string.Join(",", ids);