From 47956029dd6f3c305ba8890801d9c067ef0e6bfd Mon Sep 17 00:00:00 2001
From: isxander <xander@isxander.dev>
Date: Sun, 8 Feb 2026 14:57:02 +0000
Subject: [PATCH 1/2] fix modrinth/code#5243: detect file data on multi-part
 uploads

---
 .../providers/version/manage-version-modal.ts | 28 ++++++++++---------
 1 file changed, 15 insertions(+), 13 deletions(-)

diff --git a/apps/frontend/src/providers/version/manage-version-modal.ts b/apps/frontend/src/providers/version/manage-version-modal.ts
index 9ddf366a1b..e095822b44 100644
--- a/apps/frontend/src/providers/version/manage-version-modal.ts
+++ b/apps/frontend/src/providers/version/manage-version-modal.ts
@@ -267,15 +267,17 @@ export function createManageVersionContext(
 			if (primaryFileIndex) swapPrimaryFile(primaryFileIndex)
 		}
 
-		if (
-			filesToAdd.value.length === 1 &&
-			!editingVersion.value &&
-			modal.value?.currentStageIndex === 0
-		) {
-			if (await rejectOnRedundantWrappedZip(filesToAdd.value[0].file)) return
-
-			await addDetectedData()
-			modal.value?.nextStage()
+		if (!editingVersion.value && modal.value?.currentStageIndex === 0) {
+			if (primaryFileIndex !== null) {
+				const primaryFileData = filesToAdd.value[0]?.file
+				if (primaryFileData) {
+					if (await rejectOnRedundantWrappedZip(primaryFileData)) return
+					await addDetectedData(primaryFileData)
+				}
+				if (filesToAdd.value.length === 1 && primaryFileData) {
+					modal.value?.nextStage()
+				}
+			}
 		}
 
 		handlingNewFiles.value = false
@@ -286,7 +288,7 @@ export function createManageVersionContext(
 			filesToAdd.value[0] = { file }
 		}
 		if (await rejectOnRedundantWrappedZip(file)) return
-		await addDetectedData()
+		await addDetectedData(file)
 	}
 
 	async function swapPrimaryFile(index: number) {
@@ -297,7 +299,7 @@ export function createManageVersionContext(
 		;[files[0], files[index]] = [files[index], files[0]]
 
 		if (await rejectOnRedundantWrappedZip(files[0].file)) return
-		await addDetectedData()
+		await addDetectedData(files[0].file)
 	}
 
 	const tags = useGeneratedState()
@@ -490,10 +492,10 @@ export function createManageVersionContext(
 		return 0
 	}
 
-	const addDetectedData = async () => {
+	const addDetectedData = async (file?: File) => {
 		if (editingVersion.value) return
 
-		const primaryFileData = filesToAdd.value[0]?.file
+		const primaryFileData = file ?? filesToAdd.value[0]?.file
 		if (!primaryFileData) return
 
 		try {

From fd62f6a74d3bd22156934e8c17634596e9fd228e Mon Sep 17 00:00:00 2001
From: isxander <xander@isxander.dev>
Date: Mon, 9 Feb 2026 12:44:50 +0000
Subject: [PATCH 2/2] fix return early not making handlingNewFiles = false

---
 apps/frontend/src/providers/version/manage-version-modal.ts | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/apps/frontend/src/providers/version/manage-version-modal.ts b/apps/frontend/src/providers/version/manage-version-modal.ts
index e095822b44..2d5b911391 100644
--- a/apps/frontend/src/providers/version/manage-version-modal.ts
+++ b/apps/frontend/src/providers/version/manage-version-modal.ts
@@ -271,7 +271,10 @@ export function createManageVersionContext(
 			if (primaryFileIndex !== null) {
 				const primaryFileData = filesToAdd.value[0]?.file
 				if (primaryFileData) {
-					if (await rejectOnRedundantWrappedZip(primaryFileData)) return
+					if (await rejectOnRedundantWrappedZip(primaryFileData)) {
+						handlingNewFiles.value = false
+						return
+					}
 					await addDetectedData(primaryFileData)
 				}
 				if (filesToAdd.value.length === 1 && primaryFileData) {