$ git clone -n https://src.fedoraproject.org/rpms/php-ast.git /var/lib/mock/f45-build-27790-626/root/chroot_tmpdir/scmroot/php-ast
Cloning into '/var/lib/mock/f45-build-27790-626/root/chroot_tmpdir/scmroot/php-ast'...
$ git fetch origin 26f9cdf20ba3e8bd85fd58a6042e9001aca78c90:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/php-ast
 * [new ref]         26f9cdf20ba3e8bd85fd58a6042e9001aca78c90 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 26f9cdf Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild