Fix crash when trying use source sort filter without a pre-selection (#2036)

CHANGELOG.md

@@ -44,6 +44,7 @@ The format is a modified version of [Keep a Changelog](https://keepachangelog.co
 - Fix navigation issue after migrating a duplicated entry from History tab ([@cuong-tran](https://github.com/cuong-tran)) ([#1980](https://github.com/mihonapp/mihon/pull/1980))
 - Fix duplicate requests in WebView due to empty reasonPhrase ([@AwkwardPeak7](https://github.com/AwkwardPeak7)) ([#2003](https://github.com/mihonapp/mihon/pull/2003))
 - Fix content under source browse screen top appbar is interactable ([@AntsyLich](https://github.com/AntsyLich)) ([#2026](https://github.com/mihonapp/mihon/pull/2026))
+- Fix crash when trying use source sort filter without a pre-selection ([@AntsyLich](https://github.com/AntsyLich)) ([#2036](https://github.com/mihonapp/mihon/pull/2036))
 
 ### Removed
 - Remove Okhttp networking from WebView Screen ([@AwkwardPeak7](https://github.com/AwkwardPeak7)) ([#2020](https://github.com/mihonapp/mihon/pull/2020))

app/src/main/java/eu/kanade/tachiyomi/ui/browse/source/browse/SourceFilterDialog.kt

@@ -128,22 +128,24 @@ private fun FilterItem(filter: Filter<*>, onUpdate: () -> Unit) {
             ) {
                 Column {
                     filter.values.mapIndexed { index, item ->
+                        val sortAscending = filter.state?.ascending
+                            ?.takeIf { index == filter.state?.index }
                         SortItem(
                             label = item,
-                            sortDescending = filter.state?.ascending?.not()
-                                ?.takeIf { index == filter.state?.index },
-                        ) {
-                            val ascending = if (index == filter.state?.index) {
-                                !filter.state!!.ascending
-                            } else {
-                                filter.state!!.ascending
-                            }
-                            filter.state = Filter.Sort.Selection(
-                                index = index,
-                                ascending = ascending,
-                            )
-                            onUpdate()
-                        }
+                            sortDescending = if (sortAscending != null) !sortAscending else null,
+                            onClick = {
+                                val ascending = if (index == filter.state?.index) {
+                                    !filter.state!!.ascending
+                                } else {
+                                    filter.state?.ascending ?: true
+                                }
+                                filter.state = Filter.Sort.Selection(
+                                    index = index,
+                                    ascending = ascending,
+                                )
+                                onUpdate()
+                            },
+                        )
                     }
                 }
             }