fix(projects): preserve server picker recovery

src/main/resources/templates/projects/form.html

@@ -41,7 +41,7 @@
                         <input class="control" id="leader-search" type="search" autocomplete="off" data-picker-search>
                         <div class="picker-options">
                             <label class="picker-option" data-picker-option th:each="option : ${eligibleInternOptions}" th:attr="data-picker-search=${option.displayName + ' ' + option.studentCode}">
-                                <input type="radio" th:field="*{initialLeaderUserId}" th:value="${option.userId}" required>
+                                <input type="radio" th:field="*{initialLeaderUserId}" th:value="${option.userId}">
                                 <span><strong data-picker-label th:text="|${option.displayName} (${option.studentCode})|">Intern (Code)</strong><small th:text="|${#temporals.format(option.internshipStart, 'dd/MM/yyyy')} – ${#temporals.format(option.internshipEnd, 'dd/MM/yyyy')}|">Dates</small></span>
                             </label>
                             <p class="picker-empty" data-picker-empty th:hidden="${!#lists.isEmpty(eligibleInternOptions)}">No matching eligible Interns.</p>

src/main/resources/templates/projects/leadership.html

@@ -36,7 +36,7 @@
                     <input class="control" id="leadership-search" type="search" autocomplete="off" data-picker-search>
                     <div class="picker-options">
                         <label class="picker-option" data-picker-option th:each="option : ${eligibleInternOptions}" th:attr="data-picker-search=${option.displayName + ' ' + option.studentCode}">
-                            <input type="radio" th:field="*{internUserId}" th:value="${option.userId}" required>
+                            <input type="radio" th:field="*{internUserId}" th:value="${option.userId}">
                             <span><strong data-picker-label th:text="|${option.displayName} (${option.studentCode})|">Intern (Code)</strong><small th:text="|${#temporals.format(option.internshipStart, 'dd/MM/yyyy')} – ${#temporals.format(option.internshipEnd, 'dd/MM/yyyy')}|">Dates</small></span>
                         </label>
                         <p class="picker-empty" data-picker-empty th:hidden="${!#lists.isEmpty(eligibleInternOptions)}">No matching eligible current members.</p>

src/main/resources/templates/projects/members.html

@@ -29,6 +29,8 @@
             <p class="picker-summary" data-picker-summary aria-live="polite">No Interns selected</p>
             <p class="field-help" th:if="${#lists.isEmpty(eligibleInternOptions)}">No eligible nonmembers are available.</p>
             <p class="field-error" id="member-intern-user-error" role="alert" th:if="${#fields.hasErrors('internUserIds')}" th:errors="*{internUserIds}"></p>
+            <p class="field-help" role="status" th:if="${unavailableSelectionCount != null and unavailableSelectionCount > 0}"
+               th:text="${unavailableSelectionCount == 1 ? '1 previously selected Intern is no longer eligible; choose a replacement.' : unavailableSelectionCount + ' previously selected Interns are no longer eligible; choose replacements.'}">Unavailable selection recovery</p>
             <dialog class="picker-drawer" data-picker-dialog aria-labelledby="member-picker-title">
                 <div class="picker-header"><div><h2 class="panel-title" id="member-picker-title">Add Project members</h2><p class="field-help">Select one or more eligible Interns who are not current members.</p></div><button class="button" type="button" data-picker-cancel>Cancel</button></div>
                 <div class="picker-body">