fix: styles merging logic

Author: exploIF

android/src/main/java/com/swmansion/enriched/styles/InlineStyles.kt

@@ -2,6 +2,7 @@ package com.swmansion.enriched.styles
 
 import android.text.Editable
 import android.text.Spannable
+import android.util.Log
 import com.swmansion.enriched.EnrichedTextInputView
 import com.swmansion.enriched.spans.EnrichedSpans
 import com.swmansion.enriched.utils.getSafeSpanBoundaries
@@ -54,8 +55,7 @@ class InlineStyles(private val view: EnrichedTextInputView) {
       val spanEnd = spannable.getSpanEnd(span)
       var finalStart: Int? = null
       var finalEnd: Int? = null
-
-      spannable.removeSpan(span)
+      if (spanStart == -1 || spanEnd == -1) continue
 
       if (start == spanStart && end == spanEnd) {
         setSpanOnFinish = false