$ git clone -n https://src.fedoraproject.org/rpms/php-pecl-yaml.git /var/lib/mock/f45-build-28111-628/root/chroot_tmpdir/scmroot/php-pecl-yaml
Cloning into '/var/lib/mock/f45-build-28111-628/root/chroot_tmpdir/scmroot/php-pecl-yaml'...
$ git fetch origin 22d0d0e7ac210d0803ef7a6ee83dc36a7f2c8c38:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/php-pecl-yaml
 * [new ref]         22d0d0e7ac210d0803ef7a6ee83dc36a7f2c8c38 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 22d0d0e Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild