Add _isReleasingDataSource to prevent unnecessary operations on CurrentCell when changing or releasing DataSource#13320

Tanya-Solyanik merged 3 commits intodotnet:maindotnet/winforms:mainfrom

LeafShi1:Issue_13304_fix_InvalidOperationException_DataGridViewLeafShi1/winforms:Issue_13304_fix_InvalidOperationException_DataGridViewCopy head branch name to clipboard