diff --git a/app/controllers/projects/network_controller.rb b/app/controllers/projects/network_controller.rb
index 3dbc7a492b5..e29e5994c4b 100644
--- a/app/controllers/projects/network_controller.rb
+++ b/app/controllers/projects/network_controller.rb
@@ -9,6 +9,7 @@ class Projects::NetworkController < Projects::ApplicationController
   def show
     @url = namespace_project_network_path(@project.namespace, @project, @ref, @options.merge(format: :json))
     @commit_url = namespace_project_commit_path(@project.namespace, @project, 'ae45ca32').gsub("ae45ca32", "%s")
+    @commit = @repo.commit(params[:extended_sha1]) if params[:extended_sha1].present?
 
     respond_to do |format|
       format.html do
diff --git a/app/views/projects/network/show.html.haml b/app/views/projects/network/show.html.haml
index d8951e69242..af565873444 100644
--- a/app/views/projects/network/show.html.haml
+++ b/app/views/projects/network/show.html.haml
@@ -8,7 +8,7 @@
   .project-network
     .controls
       = form_tag namespace_project_network_path(@project.namespace, @project, @id), method: :get, class: 'form-inline network-form' do |f|
-        = text_field_tag :extended_sha1, @options[:extended_sha1], placeholder: "Git revision", class: 'search-input form-control input-mx-250 search-sha'
+        = text_field_tag :extended_sha1, params[:extended_sha1], placeholder: "Git revision", class: 'search-input form-control input-mx-250 search-sha'
         = button_tag class: 'btn btn-success' do
           = icon('search')
         .inline.prepend-left-20
diff --git a/lib/extracts_path.rb b/lib/extracts_path.rb
index a8cc189a8c2..82551f1f222 100644
--- a/lib/extracts_path.rb
+++ b/lib/extracts_path.rb
@@ -106,7 +106,7 @@ module ExtractsPath
   # resolved (e.g., when a user inserts an invalid path or ref).
   def assign_ref_vars
     # assign allowed options
-    allowed_options = ["filter_ref", "extended_sha1"]
+    allowed_options = ["filter_ref"]
     @options = params.select {|key, value| allowed_options.include?(key) && !value.blank? }
     @options = HashWithIndifferentAccess.new(@options)
 
@@ -114,21 +114,17 @@ module ExtractsPath
     @ref, @path = extract_ref(@id)
     @repo = @project.repository
 
-    if @options[:extended_sha1].present?
-      @commit = @repo.commit(@options[:extended_sha1])
-    else
+    @commit = @repo.commit(@ref)
+
+    if @path.empty? && !@commit && @id.ends_with?('.atom')
+      @id = @ref = extract_ref_without_atom(@id)
       @commit = @repo.commit(@ref)
 
-      if @path.empty? && !@commit && @id.ends_with?('.atom')
-        @id = @ref = extract_ref_without_atom(@id)
-        @commit = @repo.commit(@ref)
-
-        request.format = :atom if @commit
-      end
-
-      raise InvalidPathError unless @commit
+      request.format = :atom if @commit
     end
 
+    raise InvalidPathError unless @commit
+
     @hex_path = Digest::SHA1.hexdigest(@path)
     @logs_path = logs_file_namespace_project_ref_path(@project.namespace,
                                                       @project, @ref, @path)