fix: initWithPlatforms not sending events if beforeSend is not set on iOS

sentry-kotlin-multiplatform/src/appleMain/kotlin/io/sentry/kotlin/multiplatform/SentryBridge.apple.kt

@@ -23,7 +23,7 @@ internal actual fun SentryPlatformOptions.prepareForInit() {
     val existingBeforeSend = cocoa?.beforeSend
     val modifiedBeforeSend: (CocoaSentryEvent?) -> CocoaSentryEvent? = beforeSend@{ event ->
         // Return early if the user's beforeSend returns null
-        if (existingBeforeSend?.invoke(event) == null) {
+        if (existingBeforeSend != null && existingBeforeSend.invoke(event) == null) {
             return@beforeSend null
         }
 
@@ -37,6 +37,7 @@ internal actual fun SentryPlatformOptions.prepareForInit() {
         sdk["packages"] = packages
         event?.sdk = sdk
 
+        existingBeforeSend?.invoke(event)
         dropKotlinCrashEvent(event)
     }
 

sentry-kotlin-multiplatform/src/appleTest/kotlin/io/sentry/kotlin/multiplatform/SentryBridgeTest.apple.kt

@@ -84,11 +84,25 @@ actual class SentryBridgeTest {
             fixture.sentryInstance.lastConfiguration?.invoke(this)
         }.let { it as CocoaSentryOptions }
 
+
         // THEN
         assert(option.beforeSend != null)
         assert(option.beforeSend!!.invoke(CocoaSentryEvent()) != null)
     }
 
+    @Test
+    actual fun `default beforeSend in init does not drop the event after prepareForInit`() {
+        fixture.sut.init { }
+
+        val option = SentryPlatformOptions().apply {
+            fixture.sentryInstance.lastConfiguration?.invoke(this)
+            prepareForInit()
+        }.let { it as CocoaSentryOptions }
+
+        assert(option.beforeSend != null)
+        assert(option.beforeSend!!.invoke(CocoaSentryEvent()) != null)
+    }
+
     @Test
     actual fun `init sets the SDK packages`() {
         // GIVEN

sentry-kotlin-multiplatform/src/commonJvmTest/kotlin/io/sentry/kotlin/multiplatform/SentryBridgeTest.commonJvm.kt

@@ -73,6 +73,19 @@ actual class SentryBridgeTest {
         assert(option.beforeSend!!.execute(JvmSentryEvent(), Hint()) != null)
     }
 
+    @Test
+    actual fun `default beforeSend in init does not drop the event after prepareForInit`() {
+        fixture.sut.init { }
+
+        val option = SentryPlatformOptions().apply {
+            fixture.sentryInstance.lastConfiguration?.invoke(this)
+            prepareForInit()
+        }.let { it as JvmSentryOptions }
+
+        assert(option.beforeSend != null)
+        assert(option.beforeSend!!.execute(JvmSentryEvent(), Hint()) != null)
+    }
+
     @Test
     actual fun `init sets the SDK packages`() {
         // WHEN

sentry-kotlin-multiplatform/src/commonTest/kotlin/io/sentry/kotlin/multiplatform/SentryBridgeTest.kt

@@ -4,6 +4,7 @@ expect class SentryBridgeTest {
     fun `init sets correct configuration`()
     fun `setting null in beforeSend during init drops the event`()
     fun `default beforeSend in init does not drop the event`()
+    fun `default beforeSend in init does not drop the event after prepareForInit`()
     fun `init sets the SDK packages`()
     fun `init sets SDK version and name`()
 }