potential fix for toggle_virt working only once

Author: jbyuki

lua/nabla/utils.lua

@@ -99,8 +99,8 @@ utils.get_all_mathzones = function(opts)
       cache.changedtick = vim.api.nvim_buf_get_changedtick(buf)
     else
       parse_span = {
-        top = top < cache.top and top or (top >= cache.bottom and top or cache.bottom),
-        bottom = bottom > cache.bottom and bottom or (bottom >= cache.top and cache.top or bottom),
+        top = top <= cache.top and top or (top >= cache.bottom and top or cache.bottom),
+        bottom = bottom >= cache.bottom and bottom or (bottom >= cache.top and cache.top or bottom),
       }
     end
     cache.top = math.min(cache.top, parse_span.top)

src/viewmode/fix_markdown.lua.t

@@ -54,8 +54,8 @@ else
     cache.changedtick = vim.api.nvim_buf_get_changedtick(buf)
   else
     parse_span = {
-      top = top < cache.top and top or (top >= cache.bottom and top or cache.bottom),
-      bottom = bottom > cache.bottom and bottom or (bottom >= cache.top and cache.top or bottom),
+      top = top <= cache.top and top or (top >= cache.bottom and top or cache.bottom),
+      bottom = bottom >= cache.bottom and bottom or (bottom >= cache.top and cache.top or bottom),
     }
   end
   cache.top = math.min(cache.top, parse_span.top)