$ git clone -n https://src.fedoraproject.org/rpms/php-psr-container.git /var/lib/mock/f45-build-28277-629/root/chroot_tmpdir/scmroot/php-psr-container
Cloning into '/var/lib/mock/f45-build-28277-629/root/chroot_tmpdir/scmroot/php-psr-container'...
$ git fetch origin 79b35fd7fd8c490fe32bcfd598ad19d780c2638e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/php-psr-container
 * [new ref]         79b35fd7fd8c490fe32bcfd598ad19d780c2638e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 79b35fd Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild