Fix Li tag when switching the list style (issue #1307)

Author: elangbamjohnson

Aztec/Classes/TextKit/TextView.swift

@@ -1105,8 +1105,12 @@ open class TextView: UITextView {
         toggle(formatter: formatter, atRange: range)
 
         let liFormatter = LiFormatter(placeholderAttributes: typingAttributes)
-        toggle(formatter: liFormatter, atRange: range)
+        let isOlTagPresent = formatter.present(in: storage, at: range)
+        let isLiTagPresent = liFormatter.present(in: storage, at: range)
 
+        if (!isOlTagPresent && isLiTagPresent) || (isOlTagPresent && !isLiTagPresent) {
+            toggle(formatter: liFormatter, atRange: range)
+        }
         forceRedrawCursorAfterDelay()
     }
 
@@ -1122,8 +1126,12 @@ open class TextView: UITextView {
         toggle(formatter: formatter, atRange: range)
 
         let liFormatter = LiFormatter(placeholderAttributes: typingAttributes)
-        toggle(formatter: liFormatter, atRange: range)
-        
+        let isOlTagPresent = formatter.present(in: storage, at: range)
+        let isLiTagPresent = liFormatter.present(in: storage, at: range)
+
+        if (!isOlTagPresent && isLiTagPresent) || (isOlTagPresent && !isLiTagPresent) {
+            toggle(formatter: liFormatter, atRange: range)
+        }
         forceRedrawCursorAfterDelay()
     }