$ git clone -n https://src.fedoraproject.org/rpms/gtk-murrine-engine.git /var/lib/mock/f39-build-1462141-33306/root/chroot_tmpdir/scmroot/gtk-murrine-engine
Cloning into '/var/lib/mock/f39-build-1462141-33306/root/chroot_tmpdir/scmroot/gtk-murrine-engine'...
$ git fetch origin ba680452f19a2f2d4cb22ef569e7616e806bd126:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gtk-murrine-engine
 * [new ref]         ba680452f19a2f2d4cb22ef569e7616e806bd126 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ba68045 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild