Fix change loss when completing from edit screen

app/src/main/java/org/tasks/compose/edit/TaskEditScreen.kt

@@ -1,7 +1,6 @@
 package org.tasks.compose.edit
 
 import android.content.res.Configuration.UI_MODE_NIGHT_YES
-import androidx.compose.animation.ExperimentalAnimationApi
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.padding
@@ -35,7 +34,7 @@ import org.tasks.themes.TasksTheme
 import org.tasks.ui.TaskEditViewModel
 import org.tasks.utility.copyToClipboard
 
-@OptIn(ExperimentalMaterial3Api::class, ExperimentalAnimationApi::class)
+@OptIn(ExperimentalMaterial3Api::class)
 @Composable
 fun TaskEditScreen(
     viewState: TaskEditViewModel.ViewState,

app/src/main/java/org/tasks/ui/TaskEditViewModel.kt

@@ -600,7 +600,7 @@ class TaskEditViewModel @Inject constructor(
     fun setComplete(completed: Boolean) {
         _viewState.update { state ->
             state.copy(
-                task = task.copy(
+                task = state.task.copy(
                     completionDate = when {
                         !completed -> 0
                         task.isCompleted -> task.completionDate