$ git clone -n https://src.fedoraproject.org/rpms/kf5-purpose.git /var/lib/mock/f42-build-3384237-45084/root/chroot_tmpdir/scmroot/kf5-purpose
Cloning into '/var/lib/mock/f42-build-3384237-45084/root/chroot_tmpdir/scmroot/kf5-purpose'...
$ git fetch origin 9d478196ec18f328faea5fe5e0b79e695da89479:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf5-purpose
 * [new ref]         9d478196ec18f328faea5fe5e0b79e695da89479 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9d47819 Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild