feat: display edition info for individual records in Where is it popup

The 'Where is it?' link also appear for individual records, a list of
which can be displayed for a specific title by selecting the 'Show
Edition(s)' button. This applies the changes in 'feat: display copies
per edition per location in Where is it popup' to 'Where is it?' popups
opened through links on individual records, allowing for edition
information to be shown.

Test plan: same as for 'feat: display copies per edition per location in
Where is it popup', but focusing on 'Where is it' links on individual
records.

code/web/services/GroupedWork/AJAX.php

@@ -1535,7 +1535,7 @@ function uploadCoverByURL() : array {
 	}
 
 	/** @noinspection PhpUnused */
-	function getCopyDetails() : array {
+	function getCopyDetails(): array {
 		global $interface;
 
 		require_once ROOT_DIR . '/RecordDrivers/GroupedWorkDriver.php';
@@ -1556,48 +1556,78 @@ function getCopyDetails() : array {
 		$interface->assign('itemSummaryId', $id);
 		$interface->assign('relatedManifestation', $relatedManifestation);
 
-		$summaryList = [];
-		if ($recordId != $id) {
-			$record = $recordDriver->getRelatedRecord($recordId);
-			$summary = null;
-			if ($record != null) {
-				foreach ($relatedManifestation->getVariations() as $variation) {
-					foreach ($variation->getRecords() as $recordWithVariation) {
-						if ($recordWithVariation->id == $recordId) {
-							$summary = $recordWithVariation->getItemSummary();
+		// show the editions and group the copies at given locations by edition
+		if (!empty($separateItemsByEditionInWhereIsIt) && $separateItemsByEditionInWhereIsIt == 1) {
+			$summaryList = [];
+			if ($recordId != $id) {
+				$record = $recordDriver->getRelatedRecord($recordId);
+				$summary = null;
+				if ($record != null) {
+					foreach ($relatedManifestation->getVariations() as $variation) {
+						foreach ($variation->getRecords() as $recordWithVariation) {
+							if ($recordWithVariation->id == $recordId) {
+								$item = [];
+								$item['summary'] = $recordWithVariation->getItemSummary();
+								$item['editionCoverUrl'] = $recordWithVariation->getBookcoverUrl('small');
+								$item['edition'] = $recordWithVariation->edition;
+								array_push($summaryList, $item);
+								break;
+							}
+						}
+						if (!empty($summary)) {
 							break;
 						}
 					}
-					if (!empty($summary)) {
-						break;
+				} else {
+					// if there is no recordId, then do not attempt to look for edition information, and only display summary information
+					foreach ($relatedManifestation->getVariations() as $variation) {
+						if ($recordId == $id . '_' . $variation->label) {
+							$summary = $variation->getItemSummary();
+							break;
+						}
 					}
 				}
-				$interface->assign('summary', $summary);
 			} else {
-				foreach ($relatedManifestation->getVariations() as $variation) {
-					if ($recordId == $id . '_' . $variation->label) {
-						$summary = $variation->getItemSummary();
-						break;
-					}
-				}
-				$interface->assign('summary', $summary);
-			}
-		} else {
-			if(!empty($separateItemsByEditionInWhereIsIt) && $separateItemsByEditionInWhereIsIt == 1) {
 				foreach ($recordDriver->getRelatedRecords() as $relatedRecord) {
 					$item = [];
 					$item['summary'] = $relatedRecord->getItemSummary();
 					$item['editionCoverUrl'] = $relatedRecord->getBookcoverUrl('small');
 					$item['edition'] = $relatedRecord->edition;
 					array_push($summaryList, $item);
 				}
-				$interface->assign('summaryList', $summaryList);
+			}
+			$interface->assign('summaryList', $summaryList);
+		} else {
+			// only group copies by location, irrespective of edition (default)
+			if ($recordId != $id) {
+				$record = $recordDriver->getRelatedRecord($recordId);
+				$summary = null;
+				if ($record != null) {
+					foreach ($relatedManifestation->getVariations() as $variation) {
+						foreach ($variation->getRecords() as $recordWithVariation) {
+							if ($recordWithVariation->id == $recordId) {
+								$summary = $recordWithVariation->getItemSummary();
+								break;
+							}
+						}
+						if (!empty($summary)) {
+							break;
+						}
+					}
+				} else {
+					foreach ($relatedManifestation->getVariations() as $variation) {
+						if ($recordId == $id . '_' . $variation->label) {
+							$summary = $variation->getItemSummary();
+							break;
+						}
+					}
+				}
 			} else {
 				$summary = $relatedManifestation->getItemSummary();
-				$interface->assign('summary', $summary);
 			}
+			$interface->assign('summary', $summary);
 		}
-		
+
 		$modalBody = $interface->fetch('GroupedWork/copyDetails.tpl');
 		return [
 			'title' => translate([