public async Task Execute(MergeModel mergeModel)
{
await CheckIfWorkspaceHasIncludedPendingChangesAsync(mergeModel.WorkspaceModel);
await DoGetLatestOnBranchAsync(mergeModel.WorkspaceModel, mergeModel.SourceBranch, mergeModel.TargetBranch);
SetCurrentAction(Resources.MergingBranches);
await _mergeService.MergeBranches(mergeModel.WorkspaceModel, mergeModel.SourceBranch, mergeModel.TargetBranch, mergeModel.OrderedChangesetIds.First(), mergeModel.OrderedChangesetIds.Last());
await _mergeService.AddWorkItemsAndNavigate(mergeModel.WorkspaceModel, mergeModel.OrderedChangesetIds);
}