$ git clone -n https://src.fedoraproject.org/rpms/php-ast.git /var/lib/mock/f40-build-733782-105472/root/chroot_tmpdir/scmroot/php-ast
Cloning into '/var/lib/mock/f40-build-733782-105472/root/chroot_tmpdir/scmroot/php-ast'...
$ git fetch origin a2e3884b7536feb6763a043f8fb4da45ef570462:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/php-ast
 * [new ref]         a2e3884b7536feb6763a043f8fb4da45ef570462 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a2e3884 rebuild for https://fedoraproject.org/wiki/Changes/php83