Fix lettings log accessor in date question (#2117)

* Fix lettings log accessor in date question

* Remove hardcoded date example from mrcdate question (#2118)

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Co-authored-by: Rachael Booth <Rachael.Booth@softwire.com>

app/models/form/lettings/questions/mrcdate.rb

@@ -6,7 +6,6 @@ class Form::Lettings::Questions::Mrcdate < ::Form::Question
     @header = "When were the repairs completed?"
     @type = "date"
     @check_answers_card_number = 0
-    @hint_text = "For example, 27 3 2021."
     @question_number = 24
   end
 end

app/views/form/_date_question.html.erb

@@ -3,7 +3,7 @@
 <%= f.govuk_date_field question.id.to_sym,
   caption: caption(caption_text, page_header, conditional),
   legend: legend(question, page_header, conditional),
-  hint: { text: (question.hint_text.nil? ? "" : (question.hint_text.html_safe + "</br></br>".html_safe)) + "For example, #{date_mid_collection_year_formatted(lettings_log.startdate)}" },
+  hint: { text: (question.hint_text.nil? ? "" : (question.hint_text.html_safe + "</br></br>".html_safe)) + "For example, #{date_mid_collection_year_formatted(@log.startdate)}" },
   width: 20,
   **stimulus_html_attributes(question) do %>
   <%= govuk_inset_text(text: question.unresolved_hint_text) if question.unresolved_hint_text.present? && @log.unresolved %>