Time tag in output filename is always txxxxxxx

It seems that the output filename contains always txxxxxxx even if there is no concatenation.

For example:

rawdata: S1B_IW_GRDH_1SDV_20210309T224510_20210309T224543_025944_031839_FEC8

output: s1b_48PWR_vv_DES_018_20210309txxxxxx.tif

As there is only one image in raw data for this date, the result file should be s1b_48PWR_vv_DES_018_20210309t224510.tif and not s1b_48PWR_vv_DES_018_20210309txxxxxx.tif