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-rw-r--r--src/view/com/composer/Composer.tsx5
-rw-r--r--src/view/com/composer/text-input/TextInput.tsx9
2 files changed, 10 insertions, 4 deletions
diff --git a/src/view/com/composer/Composer.tsx b/src/view/com/composer/Composer.tsx
index 492b9074f..71714fdde 100644
--- a/src/view/com/composer/Composer.tsx
+++ b/src/view/com/composer/Composer.tsx
@@ -699,6 +699,7 @@ export const ComposePost = ({
                   dispatch={composerDispatch}
                   textInput={post.id === activePost.id ? textInput : null}
                   isFirstPost={index === 0}
+                  isLastPost={index === thread.posts.length - 1}
                   isPartOfThread={thread.posts.length > 1}
                   isReply={index > 0 || !!replyTo}
                   isActive={post.id === activePost.id}
@@ -738,6 +739,7 @@ let ComposerPost = React.memo(function ComposerPost({
   isActive,
   isReply,
   isFirstPost,
+  isLastPost,
   isPartOfThread,
   canRemovePost,
   canRemoveQuote,
@@ -752,6 +754,7 @@ let ComposerPost = React.memo(function ComposerPost({
   isActive: boolean
   isReply: boolean
   isFirstPost: boolean
+  isLastPost: boolean
   isPartOfThread: boolean
   canRemovePost: boolean
   canRemoveQuote: boolean
@@ -830,6 +833,8 @@ let ComposerPost = React.memo(function ComposerPost({
     <View
       style={[
         a.mx_lg,
+        a.mb_sm,
+        !isActive && isLastPost && a.mb_lg,
         !isActive && styles.inactivePost,
         isTextOnly && isNative && a.flex_grow,
       ]}>
diff --git a/src/view/com/composer/text-input/TextInput.tsx b/src/view/com/composer/text-input/TextInput.tsx
index e9c5d86b9..ea92d0b91 100644
--- a/src/view/com/composer/text-input/TextInput.tsx
+++ b/src/view/com/composer/text-input/TextInput.tsx
@@ -96,10 +96,11 @@ export const TextInput = forwardRef(function TextInputImpl(
       newRt.detectFacetsWithoutResolution()
       setRichText(newRt)
 
-      const prefix = getMentionAt(
-        newText,
-        textInputSelection.current?.start || 0,
-      )
+      // NOTE: BinaryFiddler
+      // onChangeText happens before onSelectionChange, cursorPos is out of bound if the user deletes characters,
+      const cursorPos = textInputSelection.current?.start ?? 0
+      const prefix = getMentionAt(newText, Math.min(cursorPos, newText.length))
+
       if (prefix) {
         setAutocompletePrefix(prefix.value)
       } else if (autocompletePrefix) {