$ git clone -n https://src.fedoraproject.org/rpms/php-pecl-memcache.git /var/lib/mock/f40-build-733809-105472/root/chroot_tmpdir/scmroot/php-pecl-memcache
Cloning into '/var/lib/mock/f40-build-733809-105472/root/chroot_tmpdir/scmroot/php-pecl-memcache'...
$ git fetch origin 47f2d3240fde7e9fe4055a473c2213a93ef68129:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/php-pecl-memcache
 * [new ref]         47f2d3240fde7e9fe4055a473c2213a93ef68129 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 47f2d32 rebuild for https://fedoraproject.org/wiki/Changes/php83