Handle more edge cases in `looseEqual()`

Editor assessment

fix(v-model) says more edge cases in looseEqual are now handled, with a pull request reference in the header. The scope and type fit, and the subject is imperative and unterminated. The phrase more edge cases is vague about which cases, and there is no body to enumerate them, so a reader cannot fully know what changed. No footer is needed. Clear enough and correctly classified, it is publishable with that specificity gap noted.