$ git clone -n https://src.fedoraproject.org/rpms/tcl-zlib.git /var/lib/mock/f40-build-796090-140461/root/chroot_tmpdir/scmroot/tcl-zlib
Cloning into '/var/lib/mock/f40-build-796090-140461/root/chroot_tmpdir/scmroot/tcl-zlib'...
$ git fetch origin ecbd8f45cf330b5b0ab52d1805815abf18cd457a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/tcl-zlib
 * [new ref]         ecbd8f45cf330b5b0ab52d1805815abf18cd457a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ecbd8f4 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild