Improve pull request checks state accuracy

gitbutler-ui/src/lib/components/PullRequestCard.svelte

@@ -75,12 +75,15 @@
 			checksStatus = await githubService.checks($pr$?.targetBranch);
 			lastChecksFetch = createTimeAgoStore(new Date(), true);
 		} catch (e: any) {
-			if (!e.message.includes('No commit found')) {
+			checksError = e.message;
+			// No commit found if branch has been removed or pr merged
+			if (e.message.includes('No commit found')) {
+				checksStatus = { error: 'Could not load checks' };
+			} else {
 				checksError = e.message;
 				toasts.error('Failed to fetch checks');
 				console.error(e);
 			}
-			checksStatus = undefined;
 		} finally {
 			isFetchingChecks = false;
 		}
@@ -223,17 +226,19 @@
 			>
 				{statusLabel}
 			</Tag>
-			<Tag
-				icon={checksIcon}
-				color={checksColor}
-				filled={checksIcon == 'success-small'}
-				clickable
-				verticalOrientation={isLaneCollapsed}
-				on:mousedown={fetchChecks}
-				help={`Updated ${$lastChecksFetch}`}
-			>
-				{checksText}
-			</Tag>
+			{#if checksStatus !== null}
+				<Tag
+					icon={checksIcon}
+					color={checksColor}
+					filled={checksIcon == 'success-small'}
+					clickable
+					verticalOrientation={isLaneCollapsed}
+					on:mousedown={fetchChecks}
+					help={`Updated ${$lastChecksFetch}`}
+				>
+					{checksText}
+				</Tag>
+			{/if}
 			<Tag
 				icon="open-link"
 				color="ghost"