What means “locked at” <tag> in composer
问题 Trying to perform a composer update <package> but getting the following error: The requested package <package> (locked at <tag>, required as dev-<branchXY>) is satisfiable by <package>[<tag>] but these conflict with your requirements or minimum-stability. Meanwhile, the tag <tag> exists as a string only in my composer.lock file, of which I thought it was only modified by composer update but not read. What does 'locked at' mean in this context and how do I solve the issue? composer why-not