$ git clone -n https://src.fedoraproject.org/rpms/php-pecl-xmlrpc.git /var/lib/mock/f40-build-733831-105472/root/chroot_tmpdir/scmroot/php-pecl-xmlrpc
Cloning into '/var/lib/mock/f40-build-733831-105472/root/chroot_tmpdir/scmroot/php-pecl-xmlrpc'...
$ git fetch origin 150c95e761af13a352fb354a3e4bf38b36e10dcd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/php-pecl-xmlrpc
 * [new ref]         150c95e761af13a352fb354a3e4bf38b36e10dcd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 150c95e rebuild for https://fedoraproject.org/wiki/Changes/php83